期刊
CARBOHYDRATE POLYMERS
卷 64, 期 4, 页码 560-568出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2005.11.026
关键词
blend film; conductive polymer; hydrogel; polyaniline; chitosan
Films consisting of a blend of a chitosan hydrogel and a conductive polymer, polyaniline (PANI), were prepared and characterized for their electrical and mechanical properties. Polyaniline in emeraldine base (EB) form was dispersed in chitosan solution and blend films were obtained by solution casting. The PANI particles in the blend films were then doped with HCl where we observed reductions in the film tensile strength and Young's modulus by about 30%, but the films electrical conductivity increased by 6 orders of magnitude. The highest electrical conductivity of the blend films was of the order 10(-4) S/cm. The electrical and mechanical properties of the films varied with polyaniline content, acid dopant type, acid dopant concentration, and doping time. (c) 2005 Elsevier Ltd. All rights reserved.
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