Thermal properties of chemically synthesized polyaniline (EB) powder

被引：190

作者：

Ding, LL

Wang, XW

Gregory, RV ^{[1
]}

机构：

[1] Clemson Univ, Ctr Adv Engn Fibers & Films, Clemson, SC 29634 USA

[2] Clemson Univ, Sch Text Fiber & Polymer Sci, Clemson, SC 29634 USA

来源：

SYNTHETIC METALS | 1999年 / 104卷 / 02期

基金：

美国国家科学基金会; 欧洲研究理事会;

关键词：

polyaniline; thermal transition; cross-linking; glass transition; modulated DSC;

D O I：

10.1016/S0379-6779(99)00035-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal characteristics of chemically synthesized polyaniline (EB) powder have been investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), modulated DSC (MDSC), wide angle X-ray diffraction (WAXD), FTIR spectra, solid MS spectrum, and solubility tests. The exothermic peak measured both in conventional DSC and MDSC was a non-reversing chemical cross-linking reaction and was further confirmed by wide angle X-ray, FTIR, and solubility tests. Two glass transitions (T-g), similar to 70 degrees C and similar to 250 degrees C, in polyaniline (EB) powder, were observed for the first time using MDSC during the process of heat treatment. These results clearly demonstrate that the morphology of polyaniline (EB) powder is changed by thermal treatment in the range of 185-350 degrees C. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：73 / 78

页数：6

共 21 条

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