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Determining the influence of N-acetylation on water sorption in chitosan films

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Determining the influence of N-acetylation on water sorption in chitosan films

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dc.contributor.author Gámiz González, Mª Amparo es_ES
dc.contributor.author Piskin, Ayse Esra es_ES
dc.contributor.author Pandis, C. es_ES
dc.contributor.author Chatzimanolis-Moustakas, C. es_ES
dc.contributor.author Kyritsis, A. es_ES
dc.contributor.author Marí Soucase, Bernabé es_ES
dc.contributor.author Gómez Ribelles, José Luís es_ES
dc.contributor.author Vidaurre Garayo, Ana Jesús es_ES
dc.date.accessioned 2016-06-29T17:27:24Z
dc.date.available 2016-06-29T17:27:24Z
dc.date.issued 2015-11-20
dc.identifier.issn 0144-8617
dc.identifier.uri http://hdl.handle.net/10251/66730
dc.description.abstract Water absorption in chitosan rapidly increases when the deacetylation degree decreases between 85 and 45%. This seems to contradict the fact that water absorption in chitin is much lower than that of chitosan. The aim of this paper is to understand this feature by measuring the main parameters affecting equilibrium water content. Since swelling capacity depends on the water–polymer interaction, the Flory Huggins interaction parameter was evaluated, finding small or null dependence on the deacetylation degree. Other factor influencing elastic energy is chain stiffness related to the elastic modulus that was measured as a function of deacetylation degree. Besides, crystalline structure was measured by X-ray diffraction patterns as a characteristic of cross-linking density. These observations led us to conclude that the instability of crystals during the swelling process increases with decreasing deacetylation degree, explaining the high equilibrium water content of low deacetylation chitosans. es_ES
dc.description.sponsorship The authors gratefully acknowledge the financial support from the Spanish Ministry of Economy and Competitiveness through the MAT2013-46467-C4-1-R project, including FEDER funds. CIBER-BBN is an initiative funded by the VI National R&D&I Plan 2008-2011, Iniciativa Ingenio 2010, Consolider Program, CIBER Actions and financed by the Instituto de Salud Carlos III with the assistance of the European Regional Development Fund. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Carbohydrate Polymers es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Chitosan es_ES
dc.subject Deacetylation degree es_ES
dc.subject Water absorption es_ES
dc.subject Flory Huggins parameter es_ES
dc.subject Chain stiffness es_ES
dc.subject Crystallinity es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.subject.classification TERMODINAMICA APLICADA (UPV) es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Determining the influence of N-acetylation on water sorption in chitosan films es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.carbpol.2015.07.020
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//MAT2013-46467-C4-1-R/ES/ESTIMULACION MECANICA LOCAL DE CELULAS MESENQUIMALES DE CARA A SU DIFERENCIACION OSTEOGENICA Y CONDROGENICA EN MEDICINA REGENERATIVA/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Centro de Biomateriales e Ingeniería Tisular - Centre de Biomaterials i Enginyeria Tissular es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Gámiz González, MA.; Piskin, AE.; Pandis, C.; Chatzimanolis-Moustakas, C.; Kyritsis, A.; Marí Soucase, B.; Gómez Ribelles, JL.... (2015). Determining the influence of N-acetylation on water sorption in chitosan films. Carbohydrate Polymers. 133:110-116. https://doi.org/10.1016/j.carbpol.2015.07.020 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.carbpol.2015.07.020 es_ES
dc.description.upvformatpinicio 110 es_ES
dc.description.upvformatpfin 116 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 133 es_ES
dc.relation.senia 299927 es_ES
dc.identifier.eissn 1879-1344
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Instituto de Salud Carlos III es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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