Chitosan, sisal cellulose, and biocomposite chitosan/sisal cellulose films prepared from thiourea/NaOH aqueous solution
| dc.rights.license | open | |
| hal.structure.identifier | Unité des Sciences du bois et des biopolymères [Us2b] | |
| dc.contributor.author | ALMEIDA, E. V. R. | |
| hal.structure.identifier | Inst Quim Sao Carlos [Univ Sao Paulo] | |
| dc.contributor.author | FROLLINI, Elisabete | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| dc.contributor.author | CASTELLAN, Alain | |
| hal.structure.identifier | Laboratoire de Chimie des Polymères Organiques [LCPO] | |
| hal.structure.identifier | Team 2 LCPO : Biopolymers & Bio-sourced Polymers | |
| dc.contributor.author | COMA, Veronique | |
| dc.date.accessioned | 2020 | |
| dc.date.available | 2020 | |
| dc.date.created | 2010 | |
| dc.date.issued | 2010 | |
| dc.identifier.issn | 0144-8617 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/20522 | |
| dc.description.abstractEn | Environmentally friendly biocomposites were successfully prepared by dissolving chitosan and cellulose in a NaOH/thiourea solvent with subsequent heating and film casting. Under the considered conditions, NaOH/thiourea led to chain depolymerization of both biopolymers without a dramatic loss of film forming capacities. Compatibility of both biopolymers in the biocomposite was firstly assessed through scanning electron microscopy, revealing an intermediate organization between cellulose fiber network and smoothness of pure chitosan. DSC analyses led to exothermic peaks close to 285 and 315 degrees C for the biocomposite, compared to the exothermic peaks of chitosan (275 degrees C) and cellulose (265 and 305 degrees C), suggesting interactions between chitosan and cellulose. Contact angle analyses pointed out the deformation that can occur at the surface due to the high affinity of the;e materials with water. T(2) NMR relaxometry behavior of biocomposites appeared to be dominated by chitosan. Other properties of films, as crystallinity, water sorption isotherms, among others, are also discussed. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Chitosan-cellulose films | |
| dc.subject.en | Biocomposite | |
| dc.subject.en | NaOH/thiourea aqueous solutions | |
| dc.title.en | Chitosan, sisal cellulose, and biocomposite chitosan/sisal cellulose films prepared from thiourea/NaOH aqueous solution | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.carbpol.2009.10.039 | |
| dc.subject.hal | Chimie/Polymères | |
| bordeaux.journal | Carbohydrate Polymers | |
| bordeaux.page | 655-664 | |
| bordeaux.volume | 80 | |
| bordeaux.hal.laboratories | Laboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629 | * |
| bordeaux.issue | 3 | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00679356 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00679356v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Carbohydrate%20Polymers&rft.date=2010&rft.volume=80&rft.issue=3&rft.spage=655-664&rft.epage=655-664&rft.eissn=0144-8617&rft.issn=0144-8617&rft.au=ALMEIDA,%20E.%20V.%20R.&FROLLINI,%20Elisabete&CASTELLAN,%20Alain&COMA,%20Veronique&rft.genre=article |
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