Investigation of the structural change of doped polyaniline during heat treatment

摘要：

Doped polyaniline (PANI) was synthesized by chemical oxidative polymerization of aniline in aqueous acidic medium with mixed sulfuric acid and 5-sulfosalcyclic acid as complex dopant, and ammonium peroxydisulfate as an oxidant, and heat treated at 150℃, 200℃, 250℃ and 300℃ for 2 hours in vacuum. Different intrinsic and extrinsic structural changes due to heat treatment were determined from FTIR and XRD measurements. When PANI is subjected to heat treatment, different changes are taking place in the system like doping, dedoping (extrinsic), oxidation and changes in crystal structure (intrinsic). Mechanisms for doping, dedoping and oxidation, are proposed.

关键词： heat treatment polyaniline oxidation degradation cross-linking

作者: HUANG Hui GUO Zhong-cheng

作者单位: Faculty of Material and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China

会议类型: 国际会议

会议名称: 2009 Advanced Polymer Processing(Qingdao)Intl Forum(2009高分子材料先进制造业(青岛)国际论坛

会议地点: 青岛

会议语种:英文

页码: 311-316

在线出版日期: 2009-08-19（万方平台首次上网日期，不代表论文的发表时间）