Cation Exchange Membranes Combined with Conducting Polymers

4 Cation Exchange Membranes Combined with Conducting Polymers 

Conducting polymers such as polyacetylene, polypyrrole, polyaniline, polythiophene, etc. have been actively studied for use in various fields due to their interesting properties batteries,46 electrochromic displays,47 materials for supercapacitors,48 corrosion protection,49 protecting layers for static electricity,50 materials for organic electroluminescence displays,51 sensing materials,52 etc. Polypyrrole is reported to be extremely rigid, with a semi-crystalline structure. 

STM analysis of polypyrrole suggests that it has two types of helical structures, with diameters of 1.5-1.8 nm, a simple helix, and 5-6 nm, a superhelix.53 

A polypyrrole membrane doped with anions of high molecular weight during electrochemical polymerization changes in anion permselectivity or cation perm- 

Aniline also easily polymerizes and changes into a conducting polymer, 

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