[ { "key": "2DDQBHRM", "version": 11, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/2DDQBHRM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/2DDQBHRM", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Ceylan et al.", "parsedDate": "2013-08-01", "numChildren": 0 }, "data": { "key": "2DDQBHRM", "version": 11, "itemType": "journalArticle", "title": "The effect of water immersion on the thermal degradation of cotton fibers", "creators": [ { "creatorType": "author", "firstName": "Özgür", "lastName": "Ceylan" }, { "creatorType": "author", "firstName": "Lieve Van", "lastName": "Landuyt" }, { "creatorType": "author", "firstName": "Hubert", "lastName": "Rahier" }, { "creatorType": "author", "firstName": "Karen De", "lastName": "Clerck" } ], "abstractNote": "The decomposition behavior of cotton fibers is examined using thermogravimetric analysis. The effect of the test parameters on the thermal degradation of raw cotton fibers is determined. Focus is given to the influence of water immersion on the thermal behavior of cotton fibers. For less mature fibers a clear difference is noted between the degradation profiles of the water-immersed and untreated samples. On the contrary, only a small change is noted on the degradation profile for more mature fibers after water immersion. The maturity and variations in water-soluble content of the fiber are found to be important factors influencing the thermal behavior of raw cotton fibers. Inductively coupled plasma atomic emission spectrometry (ICP-AES) is used to underpin the effect of water immersion on cotton fibers. This improved understanding for the role of maturity and water soluble constituents in thermal degradation of cotton fibers may lead to develop routes that improve thermal stability and smoldering characteristics of cotton fibers as relevant for future applications.", "publicationTitle": "Cellulose", "publisher": "", "place": "", "date": "2013/08/01", "volume": "20", "issue": "4", "section": "", "partNumber": "", "partTitle": "", "pages": "1603-1612", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Cellulose", "DOI": "10.1007/s10570-013-9936-0", "citationKey": "", "url": "http://link.springer.com/article/10.1007/s10570-013-9936-0", "accessDate": "2014-05-22T16:18:52Z", "PMID": "", "PMCID": "", "ISSN": "0969-0239, 1572-882X", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "link.springer.com", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Bioorganic Chemistry", "type": 1 }, { "tag": "Cotton", "type": 1 }, { "tag": "Organic Chemistry", "type": 1 }, { "tag": "Physical Chemistry", "type": 1 }, { "tag": "Polymer Sciences", "type": 1 }, { "tag": "Thermal degradation", "type": 1 }, { "tag": "Thermogravimetric analysis", "type": 1 }, { "tag": "Water immersion", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T16:18:52Z", "dateModified": "2014-05-22T16:18:52Z" } }, { "key": "ZU4W6UDP", "version": 10, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/ZU4W6UDP", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/ZU4W6UDP", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "ZU4W6UDP", "version": 10, "itemType": "webpage", "title": "DSpace@MIT: Isolation and characterization of bacterial polyhydroxybutyrate inclusions", "creators": [], "abstractNote": "", "websiteTitle": "", "websiteType": "", "date": "", "publisher": "", "place": "", "DOI": "", "citationKey": "", "url": "http://dspace.mit.edu/handle/1721.1/35690", "accessDate": "2014-05-22T15:57:06Z", "shortTitle": "", "language": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:57:06Z", "dateModified": "2014-05-22T15:57:06Z" } }, { "key": "K7ZEQCXA", "version": 9, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/K7ZEQCXA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/K7ZEQCXA", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Södergård and Näsman", "parsedDate": "1996-01-01", "numChildren": 0 }, "data": { "key": "K7ZEQCXA", "version": 9, "itemType": "journalArticle", "title": "Melt Stability Study of Various Types of Poly(l-lactide)", "creators": [ { "creatorType": "author", "firstName": "Anders", "lastName": "Södergård" }, { "creatorType": "author", "firstName": "Jan H.", "lastName": "Näsman" } ], "abstractNote": "Poly(l-lactide) (PLLA) prepared by ring-opening melt polymerization using tin?octoate as catalyst undergoes a rapid melt degradation. The melt stability of PLLA was evaluated by using a Haake melt rheometer at various temperatures. The degradation rate constants were calculated from the changes in the melt viscosity for as-polymerized, precipitated, and acid treated PLLA. Furthermore, stability measurements were performed for as-polymerized PLLA modified with various types of peroxides (hydroperoxide, dialkyl peroxide, peroxy ester, and diaroyl peroxide). The energy of activation for the melt degradation of as-polymerized PLLA was calculated to 119.4 kJ/mol at temperatures between 180 and 210 °C. Precipitation of PLLA gave a reduction of the tin catalyst content in the polymer, and this also reduced the extent of the melt degradation. A further reduction of the tin content, and accordingly a reduction in the melt degradation, was achieved after acid treatment of the polymer. Addition of peroxide in open air reduced the degradation rate constant to at least half the value of as-polymerized PLLA. However, in an inert atmosphere the dialkyl peroxide did not retard the melt degradation.", "publicationTitle": "Industrial & Engineering Chemistry Research", "publisher": "", "place": "", "date": "January 1, 1996", "volume": "35", "issue": "3", "section": "", "partNumber": "", "partTitle": "", "pages": "732-735", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Ind. Eng. Chem. Res.", "DOI": "10.1021/ie950338f", "citationKey": "", "url": "http://dx.doi.org/10.1021/ie950338f", "accessDate": "2014-05-22T15:53:31Z", "PMID": "", "PMCID": "", "ISSN": "0888-5885", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ACS Publications", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:53:31Z", "dateModified": "2014-05-22T15:53:31Z" } }, { "key": "3WK3IDBF", "version": 8, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/3WK3IDBF", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/3WK3IDBF", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/266021/items/7EZBTWQE", "type": "application/json" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "3WK3IDBF", "version": 8, "parentItem": "7EZBTWQE", "itemType": "note", "note": "exported from refbase (http://www.ebgroup.upm.edu.my/show.php?record=876), last updated on Sun, 26 Dec 2010 00:28:17 +0800", "tags": [], "relations": {}, "dateAdded": "2014-05-22T15:50:39Z", "dateModified": "2014-05-22T15:50:39Z" } }, { "key": "7EZBTWQE", "version": 8, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/7EZBTWQE", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/7EZBTWQE", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Haruo Nishida", "parsedDate": "2010", "numChildren": 1 }, "data": { "key": "7EZBTWQE", "version": 8, "itemType": "book", "title": "Precise Depolymerization of Poly(3-hydroxybutyrate) by Pyrolysis", "creators": [ { "creatorType": "author", "firstName": "Hidayah Ariffin", "lastName": "Haruo Nishida" }, { "creatorType": "editor", "firstName": "", "lastName": "Magdy M. Elnashar" } ], "abstractNote": "", "series": "", "seriesNumber": "", "volume": "", "numberOfVolumes": "", "edition": "", "date": "2010", "publisher": "Sciyo", "place": "Croatia", "originalDate": "", "originalPublisher": "", "originalPlace": "", "format": "", "numPages": "", "ISBN": "9789533071", "DOI": "", "citationKey": "", "url": "http://www.intechopen.com/articles/show/title/precise-depolymerization-of-poly-3-hydoxybutyrate-by-pyrolysis", "accessDate": "2014-05-22T15:50:39Z", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "www.ebgroup.upm.edu.my", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Poly(3-hydroxybutyrate)", "type": 1 }, { "tag": "degradation mechanisms", "type": 1 }, { "tag": "depolymerization", "type": 1 }, { "tag": "pyrolysis", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:50:39Z", "dateModified": "2014-05-22T15:50:39Z" } }, { "key": "D2CV9P35", "version": 6, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/D2CV9P35", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/D2CV9P35", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Correia et al.", "parsedDate": "2013-07-01", "numChildren": 0 }, "data": { "key": "D2CV9P35", "version": 6, "itemType": "journalArticle", "title": "Influence of electrospinning parameters on poly(hydroxybutyrate) electrospun membranes fiber size and distribution", "creators": [ { "creatorType": "author", "firstName": "Daniela M.", "lastName": "Correia" }, { "creatorType": "author", "firstName": "Clarisse", "lastName": "Ribeiro" }, { "creatorType": "author", "firstName": "José C.C.", "lastName": "Ferreira" }, { "creatorType": "author", "firstName": "Gabriela", "lastName": "Botelho" }, { "creatorType": "author", "firstName": "José Luis Gomez", "lastName": "Ribelles" }, { "creatorType": "author", "firstName": "Senentxu", "lastName": "Lanceros-Méndez" }, { "creatorType": "author", "firstName": "Vitor", "lastName": "Sencadas" } ], "abstractNote": "Poly(hydroxybutyrate) (PHB) obtained from sugar cane waste was dissolved in a blend of chloroform and dimethylformamide (DMF) and electrospun at 40°C. By adding DMF to the solution, the electrospinning process for the PHB polymer becomes more stable, allowing complete polymer crystallization during the jet travelling between the tip and the grounded collector. The influence of processing parameters on fiber size and distribution was systematically studied. It was observed that an increase of tip inner diameter promotes a decrease of the fiber average size and a broader distribution. Conversely, an increase of the electric field and flow rate produces an increase of fiber diameter until a maximum of ∼2.0 µm but for electric fields higher than 1.5 kV cm−1, a decrease of the fiber diameter was observed. Polymer crystalline phase seems to be independent of the processing conditions and a crystallinity degree of 53% was found. Moreover, thermal degradation of the as-spun membrane occurs in single step degradation with activation energy of 91 kJ mol−1. Furthermore, MC-3T3-E1 cell adhesion was not inhibited by the fiber mats preparation, indicating their potential use for biomedical applications. POLYM. ENG. SCI., 2013. © 2013 Society of Plastics Engineers", "publicationTitle": "Polymer Engineering & Science", "publisher": "", "place": "", "date": "July 1, 2013", "volume": "", "issue": "", "section": "", "partNumber": "", "partTitle": "", "pages": "n/a-n/a", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Polym Eng Sci", "DOI": "10.1002/pen.23704", "citationKey": "", "url": "http://onlinelibrary.wiley.com/doi/10.1002/pen.23704/abstract", "accessDate": "2014-05-22T15:45:09Z", "PMID": "", "PMCID": "", "ISSN": "1548-2634", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "Wiley Online Library", "callNumber": "", "rights": "© 2013 Society of Plastics Engineers", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:45:09Z", "dateModified": "2014-05-22T15:45:09Z" } }, { "key": "PC6XHD33", "version": 5, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/PC6XHD33", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/PC6XHD33", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Tsui et al.", "parsedDate": "2013", "numChildren": 0 }, "data": { "key": "PC6XHD33", "version": 5, "itemType": "document", "title": "Biodegradable Polyesters from Renewable Resources", "creators": [ { "creatorType": "author", "firstName": "Amy", "lastName": "Tsui" }, { "creatorType": "author", "firstName": "Zachary C.", "lastName": "Wright" }, { "creatorType": "author", "firstName": "Curtis W.", "lastName": "Frank" } ], "abstractNote": "Environmental concerns have led to the development of biorenewable polymers with the ambition to utilize them at an industrial scale. Poly(lactic acid) and poly(hydroxyalkanoates) are semicrystalline, biorenewable polymers that have been identified as the most promising alternatives to conventional plastics. However, both are inherently susceptible to brittleness and degradation during thermal processing; we discuss several approaches to overcome these problems to create a balance between durability and biodegradability. For example, copolymers and blends can increase ductility and the thermal-processing window. Furthermore, chain modifications (e.g., branchingcrosslinking), processing techniques (fiber drawingannealing), or additives (plasticizersnucleating agents) can improve mechanical properties and prevent thermal degradation during processing. Finally, we examine the impacts of morphology on end-of-life degradation to complete the picture for the most common renewable polymers.", "type": "", "date": "2013", "publisher": "", "place": "", "DOI": "", "citationKey": "", "url": "", "accessDate": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "eng", "libraryCatalog": "Primo", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Poly(lactic acid)", "type": 1 }, { "tag": "degradation", "type": 1 }, { "tag": "morphology", "type": 1 }, { "tag": "plasticizer", "type": 1 }, { "tag": "poly(hydroxyalkanoate)", "type": 1 }, { "tag": "structure", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:43:09Z", "dateModified": "2014-05-22T15:43:09Z" } }, { "key": "WRBKQ3XI", "version": 4, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/WRBKQ3XI", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/WRBKQ3XI", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Sinha Ray and Bousmina", "parsedDate": "2005-11", "numChildren": 0 }, "data": { "key": "WRBKQ3XI", "version": 4, "itemType": "journalArticle", "title": "Biodegradable polymers and their layered silicate nanocomposites: In greening the 21st century materials world", "creators": [ { "creatorType": "author", "firstName": "Suprakas", "lastName": "Sinha Ray" }, { "creatorType": "author", "firstName": "Mosto", "lastName": "Bousmina" } ], "abstractNote": "This review aims at highlighting on recent developments in preparation, characterization, properties, crystallization behaviors, melt rheology, processing, and future applications possibilities of biodegradable polymers and their layered silicate nanocomposites. These materials are attracting considerable interest in materials science research. Montmorillonite and hectorite are among the most commonly used smectite-type layered silicates for the preparation of nanocomposites. In their pristine form they are hydrophilic in nature, and this property makes them very difficult to disperse into biodegradable polymer matrices. The most common strategy to overcome this difficulty is to replace the interlayer clay cations with quarternized ammonium or phosphonium cations, preferably with long alkyl chains.\nA wide range of biodegradable polymer matrices is described in this review with a special emphasis on polylactide because of more eco-friendliness from its origin as contrast to the fully petroleum-based biodegradable polymers and control of carbon dioxide balance after their composting.\nPreparative techniques include (i) intercalation of polymers or prepolymers from solution, (ii) in situ intercalative polymerization method, and (iii) melt intercalation method.\nThis new family of composite materials frequently exhibits remarkable improvements of mechanical and material properties when compared with virgin polymers or conventional micro- and macro-composites. Improvements can include a high storage modulus both in solid and molten states, increased tensile and flexural properties, a decrease in gas permeability and flammability, increased heat distortion temperature and thermal stability, increase in the biodegradation rate, and so forth.", "publicationTitle": "Progress in Materials Science", "publisher": "", "place": "", "date": "November 2005", "volume": "50", "issue": "8", "section": "", "partNumber": "", "partTitle": "", "pages": "962-1079", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Progress in Materials Science", "DOI": "10.1016/j.pmatsci.2005.05.002", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0079642505000320", "accessDate": "2014-05-22T15:42:24Z", "PMID": "", "PMCID": "", "ISSN": "0079-6425", "archive": "", "archiveLocation": "", "shortTitle": "Biodegradable polymers and their layered silicate nanocomposites", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:42:24Z", "dateModified": "2014-05-22T15:42:24Z" } }, { "key": "VTWACDTX", "version": 3, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/VTWACDTX", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/VTWACDTX", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Bordes et al.", "parsedDate": "2009-02", "numChildren": 0 }, "data": { "key": "VTWACDTX", "version": 3, "itemType": "journalArticle", "title": "Nano-biocomposites: Biodegradable polyester/nanoclay systems", "creators": [ { "creatorType": "author", "firstName": "Perrine", "lastName": "Bordes" }, { "creatorType": "author", "firstName": "Eric", "lastName": "Pollet" }, { "creatorType": "author", "firstName": "Luc", "lastName": "Avérous" } ], "abstractNote": "In the recent years, bio-based products have raised great interest since sustainable development policies tend to expand with the decreasing reserve of fossil fuel and the growing concern for the environment. Consequently, biopolymers, i.e., biodegradable polymers, have been the topic of many researches. They can be mainly classified as agro-polymers (starch, protein, etc.) and biodegradable polyesters (polyhydroxyalkanoates, poly(lactic acid), etc.). These latter, also called biopolyesters, can be synthesized from fossil resources but main productions are obtained from renewable resources. Unfortunately for certain applications, biopolyesters cannot be fully competitive with conventional thermoplastics since some of their properties are too weak. Therefore, to extend their applications, these biopolymers have been formulated and associated with nano-sized fillers, which could bring a large range of improved properties (stiffness, permeability, crystallinity, thermal stability). The resulting ‘nano-biocomposites’ have been the subject of many recent publications. This review is dedicated to this novel class of materials based on clays, which are nowadays the main nanofillers used in nanocomposites systems. This review highlights the main researches and developments in biopolyester/nanoclay systems during the last decade.", "publicationTitle": "Progress in Polymer Science", "publisher": "", "place": "", "date": "February 2009", "volume": "34", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "125-155", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Progress in Polymer Science", "DOI": "10.1016/j.progpolymsci.2008.10.002", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0079670008000993", "accessDate": "2014-05-22T15:40:59Z", "PMID": "", "PMCID": "", "ISSN": "0079-6700", "archive": "", "archiveLocation": "", "shortTitle": "Nano-biocomposites", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Biodegradable", "type": 1 }, { "tag": "Biopolyesters", "type": 1 }, { "tag": "Clay", "type": 1 }, { "tag": "Nano-biocomposites", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:40:59Z", "dateModified": "2014-05-22T15:40:59Z" } }, { "key": "FHFSBZCH", "version": 2, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/FHFSBZCH", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/FHFSBZCH", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Chevillard et al.", "parsedDate": "2011-12", "numChildren": 0 }, "data": { "key": "FHFSBZCH", "version": 2, "itemType": "journalArticle", "title": "How the biodegradability of wheat gluten-based agromaterial can be modulated by adding nanoclays", "creators": [ { "creatorType": "author", "firstName": "Anne", "lastName": "Chevillard" }, { "creatorType": "author", "firstName": "Hélène", "lastName": "Angellier-Coussy" }, { "creatorType": "author", "firstName": "Bernard", "lastName": "Cuq" }, { "creatorType": "author", "firstName": "Valérie", "lastName": "Guillard" }, { "creatorType": "author", "firstName": "Guy", "lastName": "César" }, { "creatorType": "author", "firstName": "Nathalie", "lastName": "Gontard" }, { "creatorType": "author", "firstName": "Emmanuelle", "lastName": "Gastaldi" } ], "abstractNote": "The objective of this work was to investigate the influence of clay nanoparticles on the biodegradability of wheat gluten-based materials through a better understanding of multi-scale relationships between biodegradability, water transfer properties and structure of wheat gluten/clay materials. Wheat gluten/clay (nano)composites materials were prepared via bi-vis extrusion by using an unmodified sodium montmorillonite (MMT) and an organically modified MMT. Respirometric experiments showed that the rate of biodegradation of wheat gluten-based materials could be slowed down by adding unmodified MMT (HPS) without affecting the final biodegradation level whereas the presence of an organically modified MMT (C30B) did not significantly influence the biodegradation pattern. Based on the evaluation of the water sensitivity and a multi-scale characterization of material structure, three hypotheses have been proposed to account for the underlying mechanisms. The molecular/macromolecular affinity between the clay layers and the wheat gluten matrix, i.e. the ability of both components to establish interactions appeared as the key parameter governing the nanostructure, the water sensitivity and, as a result, the overall biodegradation process.", "publicationTitle": "Polymer Degradation and Stability", "publisher": "", "place": "", "date": "December 2011", "volume": "96", "issue": "12", "section": "", "partNumber": "", "partTitle": "", "pages": "2088-2097", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Polymer Degradation and Stability", "DOI": "10.1016/j.polymdegradstab.2011.09.024", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0141391011003272", "accessDate": "2014-05-22T15:40:17Z", "PMID": "", "PMCID": "", "ISSN": "0141-3910", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Biodegradation", "type": 1 }, { "tag": "Montmorillonite", "type": 1 }, { "tag": "Nanocomposite", "type": 1 }, { "tag": "Water sensitivity", "type": 1 }, { "tag": "Wheat gluten", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:40:17Z", "dateModified": "2014-05-22T15:40:17Z" } }, { "key": "KE9TSRMX", "version": 2, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/KE9TSRMX", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/KE9TSRMX", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Monteiro et al.", "parsedDate": "2012-11-15", "numChildren": 0 }, "data": { "key": "KE9TSRMX", "version": 2, "itemType": "journalArticle", "title": "Thermogravimetric behavior of natural fibers reinforced polymer composites—An overview", "creators": [ { "creatorType": "author", "firstName": "Sergio N.", "lastName": "Monteiro" }, { "creatorType": "author", "firstName": "Veronica", "lastName": "Calado" }, { "creatorType": "author", "firstName": "Rubén Jesus S.", "lastName": "Rodriguez" }, { "creatorType": "author", "firstName": "Frederico M.", "lastName": "Margem" } ], "abstractNote": "Natural fibers obtained from plants, known as lignocellulosic fibers are environmentally friendly alternatives for synthetic fiber, as polymer composite reinforcement. Applications of natural fiber composites are expanding in many engineering areas, from civil construction to automobile manufacturing. In recent years, a considerable number of scientific and technological works, including review papers, were dedicated to the characterization and properties of natural fibers and their composites. The mechanical behavior and the fracture characteristics are usually the most investigated and reviewed themes for the purpose of comparison to corresponding polymer composites reinforced with synthetic fibers, mainly fiberglass. The thermal behavior is also of practical interest for conditions associated with temperatures above the ambient, as in fire damage, curing or process involving heating procedures. In fact, several works also assessed distinct thermal responses, particularly in terms of thermogravimetric properties of natural fiber polymer composites. As no general review was conducted so far on the thermogravimetric (TG) behavior of these materials, this article presents an overview limited to temperature effects related to the loss of mass by means of TG analysis and the related derivative, DTG, for different polymer composites reinforced with the most common and relevant lignocellulosic fibers.", "publicationTitle": "Materials Science and Engineering: A", "publisher": "", "place": "", "date": "November 15, 2012", "volume": "557", "issue": "", "section": "", "partNumber": "", "partTitle": "", "pages": "17-28", "series": "A Celebration of Prof. K.K. Chawla's Distinguished Contributions: Fibers, Foams, and Composites", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Materials Science and Engineering: A", "DOI": "10.1016/j.msea.2012.05.109", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0921509312008921", "accessDate": "2014-05-22T15:40:02Z", "PMID": "", "PMCID": "", "ISSN": "0921-5093", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Fiber treatment", "type": 1 }, { "tag": "Natural fiber", "type": 1 }, { "tag": "Polymer composite", "type": 1 }, { "tag": "TG/DTG", "type": 1 }, { "tag": "Thermogravimetry", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:40:02Z", "dateModified": "2014-05-22T15:40:02Z" } }, { "key": "7JRBIBEG", "version": 2, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/7JRBIBEG", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/7JRBIBEG", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Yu et al.", "parsedDate": "2006-06", "numChildren": 0 }, "data": { "key": "7JRBIBEG", "version": 2, "itemType": "journalArticle", "title": "Polymer blends and composites from renewable resources", "creators": [ { "creatorType": "author", "firstName": "Long", "lastName": "Yu" }, { "creatorType": "author", "firstName": "Katherine", "lastName": "Dean" }, { "creatorType": "author", "firstName": "Lin", "lastName": "Li" } ], "abstractNote": "This article reviews recent advances in polymer blends and composites from renewable resources, and introduces a number of potential applications for this material class. In order to overcome disadvantages such as poor mechanical properties of polymers from renewable resources, or to offset the high price of synthetic biodegradable polymers, various blends and composites have been developed over the last decade. The progress of blends from three kinds of polymers from renewable resources—(1) natural polymers, such as starch, protein and cellulose; (2) synthetic polymers from natural monomers, such as polylactic acid; and (3) polymers from microbial fermentation, such as polyhydroxybutyrate—are described with an emphasis on potential applications. The hydrophilic character of natural polymers has contributed to the successful development of environmentally friendly composites, as most natural fibers and nanoclays are also hydrophilic in nature. Compatibilizers and the technology of reactive extrusion are used to improve the interfacial adhesion between natural and synthetic polymers.", "publicationTitle": "Progress in Polymer Science", "publisher": "", "place": "", "date": "June 2006", "volume": "31", "issue": "6", "section": "", "partNumber": "", "partTitle": "", "pages": "576-602", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Progress in Polymer Science", "DOI": "10.1016/j.progpolymsci.2006.03.002", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0079670006000414", "accessDate": "2014-05-22T15:39:48Z", "PMID": "", "PMCID": "", "ISSN": "0079-6700", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Biodegradable", "type": 1 }, { "tag": "Blend", "type": 1 }, { "tag": "Composite", "type": 1 }, { "tag": "Polymer", "type": 1 }, { "tag": "Renewable resource", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:39:48Z", "dateModified": "2014-05-22T15:39:48Z" } }, { "key": "4KTCRGSS", "version": 2, "library": { "type": "group", "id": 266021, "name": "Depolymerization Polyhydroxybutyrate Activation energy", "links": { "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/266021/items/4KTCRGSS", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/depolymerization_polyhydroxybutyrate_activation_energy/items/4KTCRGSS", "type": "text/html" } }, "meta": { "createdByUser": { "id": 1261598, "username": "Bibliobomb", "name": "Alex Hernandez", "links": { "alternate": { "href": "https://www.zotero.org/bibliobomb", "type": "text/html" } } }, "creatorSummary": "Carrasco et al.", "parsedDate": "2010-12", "numChildren": 0 }, "data": { "key": "4KTCRGSS", "version": 2, "itemType": "journalArticle", "title": "Kinetics of the thermal decomposition of processed poly(lactic acid)", "creators": [ { "creatorType": "author", "firstName": "F.", "lastName": "Carrasco" }, { "creatorType": "author", "firstName": "P.", "lastName": "Pagès" }, { "creatorType": "author", "firstName": "J.", "lastName": "Gámez-Pérez" }, { "creatorType": "author", "firstName": "O. O.", "lastName": "Santana" }, { "creatorType": "author", "firstName": "M. L.", "lastName": "Maspoch" } ], "abstractNote": "The kinetics of the thermal decomposition of processed poly(lactic acid) has been studied and compared to that of raw material. Processing consisted of two different industrial processes: 1) Injection (with or without further annealing); 2) Extrusion followed by injection (with or without further annealing). For this study, an integral method (based on the general analytical solution), differential methods (based on the first conversion derivative and on the 2nd derivative) and special methods have been used. On the other hand, a method based on the maximum decomposition rate has been considered. By doing that, the kinetic parameters (reaction order, frequency factor and activation energy) have been determined. It has been demonstrated that there was only one first-order reaction for the entire conversion range. A new equation (based on the second conversion derivative plot as a function of temperature) was developed allowing the calculation of the reaction order. This method quantifies peak areas (and not peak heights, as reported by Kissinger). It is very useful because it considers both peak shape and width. Activation energy, as determined by using the general analytical solution, was 318 kJ/mol for unprocessed poly(lactic acid) whereas it was 280 ± 5 kJ/mol for processed materials. All the processed materials had approximately the same thermal stability (T5 = 333.0–335.8 °C, at 95% confidence level), which was slightly lower than that of unprocessed materials (T5 = 337.5 °C). PLA melting (during extrusion and injection) was responsible for depolymerization reactions (the small molecules formed during melting processes can volatilize readily).", "publicationTitle": "Polymer Degradation and Stability", "publisher": "", "place": "", "date": "December 2010", "volume": "95", "issue": "12", "section": "", "partNumber": "", "partTitle": "", "pages": "2508-2514", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Polymer Degradation and Stability", "DOI": "10.1016/j.polymdegradstab.2010.07.039", "citationKey": "", "url": "http://www.sciencedirect.com/science/article/pii/S0141391010003332", "accessDate": "2014-05-22T15:39:35Z", "PMID": "", "PMCID": "", "ISSN": "0141-3910", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "ScienceDirect", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Extrusion", "type": 1 }, { "tag": "Injection", "type": 1 }, { "tag": "Kinetic models", "type": 1 }, { "tag": "Poly(lactic acid)", "type": 1 }, { "tag": "Thermal stability", "type": 1 }, { "tag": "Thermogravimetric analysis (TGA)", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2014-05-22T15:39:35Z", "dateModified": "2014-05-22T15:39:35Z" } } ]