NAGIOS: RODERIC FUNCIONANDO

Effect of chitin whiskers on the molecular dynamics of carrageenan-based nanocomposites

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Effect of chitin whiskers on the molecular dynamics of carrageenan-based nanocomposites

dc.contributor.author	Carsi, Marta
dc.contributor.author	Sanchís, María J.
dc.contributor.author	Gómez Clarí, Clara M.
dc.contributor.author	Rodriguez, Sol
dc.contributor.author	Torres, Fernando G.
dc.date.accessioned	2020-05-07T07:57:56Z
dc.date.available	2020-05-07T07:57:56Z
dc.date.issued	2019
dc.identifier.citation	Carsi, Marta Sanchís, María J. Gómez Clarí, Mª Clara Rodriguez, Sol Torres, Fernando G. 2019 Effect of chitin whiskers on the molecular dynamics of carrageenan-based nanocomposites Polymers 11 1083-1 1083-16
dc.identifier.uri	https://hdl.handle.net/10550/74466
dc.description.abstract	Films of carrageenan (KC) and glycerol (g) with different contents of chitin nanowhiskers (CHW) were prepared by a solution casting process. The molecular dynamics of pure carrageenan (KC), carrageenan/glycerol (KCg) and KCg with different quantities of CHWs as a filler was studied using dielectric relaxation spectroscopy. The analysis of the CHW effect on the molecular mobility at the glass transition, Tg, indicates that non-attractive intermolecular interactions between KCg and CHW occur. The fragility index increased upon CHW incorporation, due to a reduction in the polymer chains mobility produced by the CHW confinement of the KCg network. The apparent activation energy associated with the relaxation dynamics of the chains at Tg slightly increased with the CHW content. The filler nature effect, CHW or montmorillonite (MMT), on the dynamic mobility of the composites was analyzed by comparing the dynamic behavior of both carrageenan-based composites (KCg/xCHW, KCg/xMMT).
dc.language.iso	eng
dc.relation.ispartof	Polymers, 2019, vol. 11, p. 1083-1-1083-16
dc.subject	Ciència dels materials
dc.subject	Biomolècules
dc.title	Effect of chitin whiskers on the molecular dynamics of carrageenan-based nanocomposites
dc.type	journal article	es_ES
dc.date.updated	2020-05-07T07:57:57Z
dc.identifier.doi	10.3390/polym11061083
dc.identifier.idgrec	138812
dc.rights.accessRights	open access	es_ES