The Effect of Oxidant on Structure and Properties of PAn/PTFE Conducting Composite Membrane

Authors

Chang-yuan TAO, 1) , CHEN Jing~(1) , DU Jun~(1) , SUN Cai-xin~(2)(1.College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044; (2).College of Electrical Engineering, Chongqing University, Chongqing 400044,China;

Abstract

The PAn/PTFE conducting composite membrane was prepared by means of in-situ permeating chemical polymerization, with (NH_(4))_(2)S_(2)O_(8) and Na_(3)VO_(4) being used as an oxidant respectively.The polymerization-growth behavior of the aniline by using different oxidant was compared. In addition, the oxidant effect on the structure and properties of conducting composite membrane was discussed. The results of SEM micrographs, pore size distribution and electrochemical methods suggested that using either oxidants could also induce the product with small pore size and dense pore structure. Compared with (NH_(4))_(2)S_(2)O_(8), using Na_(3)VO_(4 ) as an oxidant would induce the polyaniline with denser polymers in the membrane pores, the surface conductivity was 2.62 S·cm~(-1), while the cross-sectional conduction was enhanced about 1~2 orders, and the electrochemical activity of such conducting composite membrane were enhanced also.

Keywords

Conducting composite membrane, Oxidant, Membrane pore property

DOI Link

https://doi.org/10.61558/2993-074X.1642

Publication Date

2005-05-28

Online Available Date

2005-05-28

Revised Date

2005-05-28

Received Date

2005-05-28

Recommended Citation

Chang-yuan TAO. The Effect of Oxidant on Structure and Properties of PAn/PTFE Conducting Composite Membrane[J]. Journal of Electrochemistry, 2005 , 11(2): 208-214.
DOI: 10.61558/2993-074X.1642
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss2/18