Journal
POLYMER DEGRADATION AND STABILITY
Volume 93, Issue 6, Pages 1094-1099Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2008.03.013
Keywords
heat treatment; polyaniline; x-ray; oxidation; degradation; cross-linking
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HCl doped polyaniline (PAni) was synthesized electrochemically and heat treated at 150 degrees C, 200 degrees C and 250 degrees C for 30 min in vacuum. Different intrinsic and extrinsic structural changes due to heat treatment were determined from XRD, TGA, FT-IR, conductivity and solubility measurement. When HCl doped PAni is subjected to heat treatment, different changes are taking place in the system like doping, dedoping (extrinsic), oxidation, chain scission, cross-linking and changes in crystal structure (intrinsic). Mechanism for doping, dedoping, oxidation, chain scission and cross-linking is proposed. (c) 2008 Elsevier Ltd. All rights reserved.
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