THERMAL-ANALYSIS OF POLYANILINE FREE STANDING FILMS

被引：17

作者：

MILTON, AJ

MONKMAN, AP

机构：

[1] Organic Electro-active Materials Research Group, Department of Physics, University of Durham, Durham

来源：

SYNTHETIC METALS | 1993年 / 57卷 / 01期

基金：

欧洲研究理事会;

关键词：

D O I：

10.1016/0379-6779(93)90478-F

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on Dynamic Mechanical Thermal Analysis (DMTA) studies of free standing films of polyaniline. These films were cast from chemically synthesised emeraldine base dissolved in the solvent N-methyl-2-pyrrolidinone (NMP). Thermal scans show a softening 'T(g) process' for such films at approximately 100-degrees-C. This occurs as solvent molecules are being removed from the samples. The exact transition temperature is dependent on the weight fraction of the NMP solvent and increases with decreasing solvent content. Above 180-degrees-C a crosslinking of the polymer chains occurs resulting in a hardening of the films. This crosslinked material is characterised by a new transition at 265-degrees-C. A low temperature transition is also seen at -80-degrees-C. This is interpreted as a torsional motion of the aromatic rings in the polymer chains.

引用

页码：3571 / 3575

页数：5

共 6 条

[1]

ADAMS PN, 1993, SYNTHETIC MET, V57

[2]

KENWRIGHT AM, IN PRESS POLYMER

[3] OBSERVED ANISOTROPIES IN STRETCH ORIENTED POLYANILINE [J].

MONKMAN, AP ;

ADAMS, P .

SYNTHETIC METALS, 1991, 41 (1-2) :627-633

[4] POLYANILINE - ORIENTED FILMS AND FIBERS [J].

SCHERR, EM ;

MACDIARMID, AG ;

MANOHAR, SK ;

MASTERS, JG ;

SUN, Y ;

TANG, X ;

DRUY, MA ;

GLATKOWSKI, PJ ;

CAJIPE, VB ;

FISCHER, JE ;

CROMACK, KR ;

JOZEFOWICZ, ME ;

GINDER, JM ;

MCCALL, RP ;

EPSTEIN, AJ .

SYNTHETIC METALS, 1991, 41 (1-2) :735-738

[5]

WEI Y, 1989, POLYM MATER SCI ENG, V61, P916

[6]

WETTON RE, 1986, DEV POLYM CHARACTERI, V5, P179

← 1 →