Journal
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
Volume 54, Issue 4, Pages 411-415Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2014.935420
Keywords
Chitosan; Conductive fiber; Cyclic voltammetry; in situ oxidation; Polypyrrole
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Funding
- Foundation of Science and Technology Bureau of Wuhan [20140 10101010016]
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University [JDGD-2013-13]
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Conductive chitosan/polypyrrole composite fibers (CS-PPy) were fabricated through pyrrole polymerization on chitosan fibers by in situ oxidation, in which chitosan fibers were obtained by the wet spinning method. The structures, the morphologies and the electroactivities of CS-PPy were characterized by FTIR, SEM, TGA, the four-probe technique and cyclic voltammetry (CV). Results showed that the diameter, thermal stability and electrical conductivity of the fiber were affected by pyrrole polymerization times. Electrical conductivity values of CS-PPy were varied from 1.60 x 10(-5) to 1.31 x 10(-4) S cm(-1). CV of the conductive fibers presents an oxidation peak at 0.25V in pH 7.0 PBS. Such biodegradable conductive fibers may provide new electrical stimulation materials in biomedical applications.
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