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Preparation and Characteristics of Polypyrrole/sulfonated Poly(2,6-dimethyl-1,4-phenylene oxide) Composite Electrode  

Huh, Yang-Il (Faculty of Applied Chemical Engineering, Chonnam National University)
Jung, Hong-Ryun (Faculty of Applied Chemical Engineering, Chonnam National University)
Lee, Wan-Jin (Center for Functional Nano Fine Chemicals, Chonnam National University)
Publication Information
Polymer(Korea) / v.31, no.1, 2007 , pp. 74-79 More about this Journal
Abstract
Polypyrrole (PPy) was made by an emulsion polymerization using iron (III) chloride ($FeCl_3$) as an initiator and dodecyl benzene sulfuric acid (DBSA) as an emulsifier and dopant. Poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) was sulfonated by chlorosulfonic acid (CSA). The cathode was composed of $PPy^+DBS^-$ complex, conductor powder, and PPO or sulfonated poly (2,6-dimethyl-1,4-phenylene oxide) (SPPO) as a binder or dopant. The charge-discharge performance of $PPy^+DBS^-/SPPO$ cathode was increased as the extent of about 50%, than $PPy^+DBS^-/PPO$. This is because SPPO played a role as a binder as well as a dopant. In addition, sulfonation brings out the increase of miscibility between PPy and SPPO, and the increase of contact area between cathode and electrolyte.
Keywords
Polypyrrole; sulfonation; poly(2,6-dimethyl-1,4-phenylene oxide); electrochemical property;
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