Conducting polyaniline film from aqueous dispersion: Crystallizable side chain forced lamellar structure for high conductivity

被引：43

作者：

Zhang, Hongming ^{[1
]}

Wang, Xianhong ^{[1
]}

Li, Ji ^{[1
]}

Mo, Zhishen ^{[1
]}

Wang, Fosong ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

POLYMER | 2009年 / 50卷 / 12期

基金：

美国国家科学基金会;

关键词：

Polyaniline; Aqueous dispersion; High conductivity; WATER-SOLUBLE POLYANILINE; X-RAY; ELECTRICAL-CONDUCTIVITY; SULFONATED POLYANILINE; POLYMER; ACID; PROCESSIBILITY; SOLVENTS; DIFFRACTION; COSOLVENTS;

D O I：

10.1016/j.polymer.2009.04.020

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Aqueous conducting polyaniline dispersion was prepared employing acidic phosphate ester bearing hydrophilic ethylene glycol segment as dopant, and conducting film with electrical conductivity of 25 S/cm was obtained from the dispersion. Ordered self-assembly lamellar structure with interlamellar distance of 1.2 nm was observed in the film, which consisted of alternating layers of rigid polyaniline chain and flexible phosphate ester side chains, where the phosphate side chain layer was separated by two rigid polyaniline layers. The lamellar structure leading to high conducting film was formed due to the confinement of polyaniline chain by crystallizable phosphate side chain, since the electrical conductivity decreased by four orders of magnitude once the dopant side chain crystalline was destroyed. The crystallizable side chain forced lamellar structure is expected to be a new chance for highly conducting polyaniline. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2674 / 2679

页数：6

共 40 条

[1] Origins, current status, and future challenges of green chemistry [J].