AQUEOUS COLLOIDAL DISPERSIONS OF POLYANILINE FORMED BY USING POLY(VINYLPYRIDINE)-BASED STERIC STABILIZERS

被引：130

作者：

ARMES, SP ^{[1
]}

ALDISSI, M ^{[1
]}

AGNEW, S ^{[1
]}

GOTTESFELD, S ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

LANGMUIR | 1990年 / 6卷 / 12期

关键词：

D O I：

10.1021/la00102a007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Colloidal polyaniline has been prepared in acidic aqueous media by chemical grafting of polyaniline onto a tailor-made polymeric surfactant. The surfactant, which acts as a steric stabilizer, used in this study is the random copolymer poly(2-vinylpyridine-co-p-aminostyrene). This surfactant contains pendant aniline units which participate in the aniline polymerization, resulting in the formation of sterically stabilized polyaniline particles which have a nonspherical "rice grain" morphology. It is shown that this novel form of polyaniline is more processable than the bulk powder that is normally obtained from a conventional chemical or electrochemical synthesis. The solid-state conductivity of solution-cast films or compressed pellets of these dispersions is surprisingly high (congruent-to 1 S/cm), despite the presence of the insulating stabilizing outer layer. The colloids were characterized by a wide range of techniques including electron microscopy, cyclic voltammetry, and FTIR, visible absorption, and X-ray photoelectron spectroscopies.

引用

页码：1745 / 1749

页数：5

共 17 条

[1]

ANDEREATTA A, 1988, J SYNTH MET, V26, P383

[2]

ARMES SP, 1989, SYNTHETIC MET, V28, pC837, DOI 10.1016/0379-6779(89)90611-5

[3]

ARMES SP, 1987, J CHEM SOC CHEM COMM, P288

[4] PREPARATION AND CHARACTERIZATION OF COLLOIDAL DISPERSIONS OF POLYPYRROLE USING POLY(2-VINYL PYRIDINE)-BASED STERIC STABILIZERS [J].