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Structure and properties of thermomechanically processed chitosan/carboxymethyl cellulose/graphene oxide polyelectrolyte complexed bionanocomposites

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Chen, Pei, Xie, Fengwei, Tang, Fengzai and McNally, Tony (2020) Structure and properties of thermomechanically processed chitosan/carboxymethyl cellulose/graphene oxide polyelectrolyte complexed bionanocomposites. International Journal of Biological Macromolecules, 158 . pp. 420-429. doi:10.1016/j.ijbiomac.2020.04.259

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WRAP-structure-properties-thermomechanically-processed-chitosan-carboxymethyl-cellulose-graphene-oxide-polyelectrolyte-complexed-bionanocomposites-McNally-2020.pdf - Accepted Version
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Official URL: http://dx.doi.org/10.1016/j.ijbiomac.2020.04.259

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Abstract

Bionanocomposites of chitosan and chitosan/carboxymethyl cellulose (CMC) polyelectrolyte complexed materials with graphene oxide (GO) or reduced graphene oxide (rGO) were prepared by thermomechanical processing with excellent levels of dispersion. While GO has a greater affinity with the chitosan polycation, rGO had a more pronounced effect on properties resulting in increased tensile strength, Shore D hardness, and thermal stability of both matrices. Although GO is more hydrophilic than rGO, the former increased more effectively the surface hydrophobicity of the biocomposites regardless of matrix type. GO and rGO changed the α-transition of the biocomposites in a similar manner. The electrochemical properties of the biocomposites were influenced by both nanofiller type and matrix. This research revealed that inclusion of 2D carbon nanomaterials can alter biopolymer interactions and that the phase structure of the biopolymer blend may play a more important role than nanofiller–matrix interactions in determining the overall properties of these bionanocomposites.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Q Science > QP Physiology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Polysaccharides -- Thermomechanical treatment, Polyelectrolytes, Graphene, Microstructure, Contact angle
Journal or Publication Title: International Journal of Biological Macromolecules
Publisher: Elsevier
ISSN: 0141-8130
Official Date: 1 September 2020
Dates:
DateEvent
1 September 2020Published
3 May 2020Available
29 April 2020Accepted
Date of first compliant deposit: 1 June 2020
Volume: 158
Page Range: pp. 420-429
DOI: 10.1016/j.ijbiomac.2020.04.259
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
798225Horizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
UNSPECIFIEDChina Scholarship Councilhttp://dx.doi.org/10.13039/501100004543
GXPSMM18ZD-02Guangxi Key Laboratory of Polysaccharide Materials and Modification, Guangxi University for Nationalities, Chinahttp://dx.doi.org/10.13039/501100004703

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