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Enzymatic synthesis of colloidal polyaniline particles

被引：45
作者：
Cruz-Silva, R
Ruiz-Flores, C
Arizmendi, L
Romero-García, J
Arias-Marin, E
Moggio, I
Castillon, FF
Farias, MH
机构：
[1] CIQA, Dept Mat Avanzados, Saltillo 25100, Coahuila, Mexico
[2] UAEM, Ctr Invest Ingn & Ciencias Aplicadas, Cuernavaca 62210, Morelos, Mexico
[3] Univ Nacl Autonoma Mexico, Ctr Ciencias Mat Condensada, Ensenada 22800, Baja California, Mexico
来源：
POLYMER | 2006年 / 47卷 / 05期
关键词：
polyaniline colloids; enzymatic synthesis; dispersion polymerization;
D O I：
10.1016/j.polymer.2005.12.082
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyaniline colloidal particles were enzymatically synthesized ill aqueous media using poly(vinyl alcohol) as steric stabilizer. Hydrochloric acid, toluenesulfonic acid, and camphorsulfonic acid were used as doping agents during polymerization. Polyaniline showed chemical redox reversibility as demonstrated by changes in its electronic absorption spectra. Fourier transform infrared and UV-visible spectroscopic studies indicate a linear chemical structure of the synthesized polymer, whereas the results from X-ray photoelectron spectroscopy indicate the adsorption of poly(vinyl alcohol) at the surface of the particles. The doping agent used during the enzymatic polymerization of aniline influenced morphology and thermal stability of the synthesized particles. Polyaniline colloids prepared using P-toluenesulfonic acid showed spherical morphology and a narrow size distribution as shown by scanning electron microscopy and dynamic light scattering. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1563 / 1568
页数：6
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