Aging and thermal degradation of poly(N-methylaniline)

被引：37

作者：

Abthagir, PS

Saraswathi, R ^{[1
]}

Sivakolunthu, S

机构：

[1] Madurai Kamaraj Univ, Dept Mat Sci, Madurai 625021, Tamil Nadu, India

[2] Madurai Kamaraj Univ, Sch Chem, Dept Inorgan Chem, Madurai 625021, Tamil Nadu, India

来源：

THERMOCHIMICA ACTA | 2004年 / 411卷 / 02期

关键词：

conducting polymer; poly(N-methylaniline); aging; thermal degradation; activation energy;

D O I：

10.1016/j.tca.2003.08.010

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The conductivity aging and thermal stability of poly(N-methylaniline) are reported. Poly(N-methylaniline) doped with chloride ion was electrochemically synthesized. The conductivity data obtained in the temperature range between 118 and 483 K are analysed by Arrhenius and Mott models to elucidate the conduction mechanism. The thermal degradation of both doped and dedoped samples of poly(N-methylaniline) in air and nitrogen atmosphere has been followed using thermogravimetric and differential thermal analysis techniques. The polymer is heat-aged at various temperatures and the aged samples are analysed by FT-IR, SEM and XRD. The thermogravimetric data are further analysed by three different methods: Horowitz and Metzger [Anal. Chem. 35 (1963) 1464], Coats and Redfern [Nature 201 (1964) 68], Chan et al. [Synth. Met. 31 (1989) 95] to evaluate the energy of activation. The applicability of the three methods for the evaluation of kinetic parameters is discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：109 / 123

页数：15

共 54 条

[1]

[Anonymous], EUR C COMP METH APPL

[2]

Athawale AA, 1999, J APPL POLYM SCI, V74, P1286, DOI 10.1002/(SICI)1097-4628(19991031)74:5<1286::AID-APP26>3.0.CO

[3]

2-I

[4] ALTERATION OF THE ION-EXCHANGE MECHANISM OF AN ELECTROACTIVE POLYMER BY MANIPULATION OF THE ACTIVE-SITE - PROBE BEAM DEFLECTION AND QUARTZ CRYSTAL MICROBALANCE STUDY OF POLY(ANILINE) AND POLY(N-METHYLANILINE) [J].