Premium
Electrochemical polymerization of p ‐terphenyl in mixed electrolyte of boron trifluoride diethyl etherate and CH 2 Cl 2
Author(s) -
Zhou Weiqiang,
Xu Jingkun,
Du Yukou,
Yang Ping
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30927
Subject(s) - boron trifluoride , electrochemistry , terphenyl , saturated calomel electrode , polymerization , fourier transform infrared spectroscopy , thermal stability , chemistry , supporting electrolyte , cyclic voltammetry , polymer chemistry , materials science , nuclear chemistry , electrode , organic chemistry , polymer , reference electrode , chemical engineering , engineering , catalysis
High quality poly( p ‐phenylene) (PPP) film with conductivity of 0.015 S cm −1 was synthesized electrochemically by direct anodic oxidation of p ‐terphenyl (PP) oligomers in boron trifluoride diethyl etherate (BFEE) containing 37.5% CH 2 Cl 2 (v/v). The oxidation onset potential of PP in this medium was measured to be only 1.23 V vs . saturated calomel electrode (SCE), which was lower than that determined in CH 2 Cl 2 + 0.1 mol L −1 Bu 4 NBF 4 (1.87 V vs . SCE). As‐formed PPP films showed good electrochemical behavior, good electrochromic property and good thermal stability. The structures and morphology of doped and dedoped PPP were investigated by UV‐vis, FTIR, and Scanning electron micrographs. The infrared spectroscopic measurements for the estimation of chain lengths revealed that PPP was composed of about 10 phenyl rings. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010