IONIC EXCHANGES IN DODECYLBENZENESULFONATE DOPED POLYPYRROLE .1. OPTICAL BEAM DEFLECTION STUDIES

被引：72

作者：

MATENCIO, T

DEPAOLI, MA

PERES, RCD

TORRESI, RM

DETORRESI, SIC

机构：

[1] UNICAMP,INST QUIM,BR-13083970 CAMPINAS,SP,BRAZIL

[2] UNIV FED RIO DE JANEIRO,INST QUIM,BR-21949900 RIO JANEIRO,BRAZIL

[3] UNIV SAO PAULO,INST QUIM,BR-13560030 SAO CARLOS,SP,BRAZIL

[4] UNIV FED SAO CARLOS,DEPT QUIM,BR-13565905 SAO CARLOS,SP,BRAZIL

来源：

SYNTHETIC METALS | 1995年 / 72卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

IONIC EXCHANGE; DODECYLBENZENESULFONATE; DOPING; POLYPYRROLE; OPTICAL BEAM DEFLECTION;

D O I：

10.1016/0379-6779(94)02320-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cyclic voltammetry and optical beam deflection (OBD) techniques in different electrolytes, KCl, KClO4, CsCl, NaCl, LiClO4, and LiCl, were used to study the ionic exchange processes in polypyrrole (PPy) doped with an anionic surfactant, dodecyl-benzenesulfonate (DBS-). Our results show the role played by the cations during the first redox process of the polymer. To compare the OBD curves in each electrolyte, they were normalized with respect to their dependence on the chemical nature of the electrolyte. The use of temporal convolution, proposed by Vieil et al. (J. Electroanal. Chem., 368 (1994) 183), to relate electrical current and angular optical beam deflection, allows the modeling of the OBD curves and the calculation of apparent diffusion coefficients for each electrolyte and the diffusion coefficient of each ionic species.

引用

页码：59 / 64

页数：6

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