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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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:	Date Event 1 September 2020 Published 3 May 2020 Available 29 April 2020 Accepted
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 ID RIOXX Funder Name Funder ID 798225 Horizon 2020 Framework Programme http://dx.doi.org/10.13039/100010661 UNSPECIFIED China Scholarship Council http://dx.doi.org/10.13039/501100004543 GXPSMM18ZD-02 Guangxi Key Laboratory of Polysaccharide Materials and Modification, Guangxi University for Nationalities, China http://dx.doi.org/10.13039/501100004703

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