Effect of temperature and moisture on electrical conductivity in polyaniline/polyurethane (PANI/PU) blends

被引：55
|
作者：
Yoshikawa, Hitoshi
Hino, Tetsuo
Kuramoto, Noriyuki
机构：
[1] Yamagata Univ, Grad Sch Sci & Engn, Yonezawa, Yamagata 9928510, Japan
[2] Tokai Rubber Ind Ltd, Mat Technol Res & Dev Labs, Komaki, Aichi 4858550, Japan
来源：
SYNTHETIC METALS | 2006年 / 156卷 / 18-20期
关键词：
polyaniline; dopant; blend; moisture; aging;
D O I：
10.1016/j.synthmet.2006.08.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Miscible blend of conductive polyaniline/polyurethane (PANI/PU) showed preferable electrical property at low percolation threshold compared to immiscible blend of PANI/polystyrene-isoprene-copolymer (PANI/SIS) and carbon black/PU composite (CB/PU). The time dependence of the electrical conductivity was investigated with these samples aged under different humidity and temperatures. The electrical conductivity of PANI/PU (11.5/88.5, v/v) decreased with aging time and the morphology changed with time in the coexistence of high moisture and high temperature. After the aging treatment, the film of the miscible blend was re-dissolved and re-cast. The morphology and electrical conductivity were found to recover to the same state as the original film. In addition, the recovery mechanism of the morphology and the conductivity was also proposed here. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1187 / 1193
页数：7
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