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Low potential electrodeposition of high‐quality and freestanding poly(3‐(6‐bromohexyl)thiophene) films
Author(s) -
Xu Jingkun,
Wei Zhenhong,
Du Yukou,
Pu Shouzhi,
Hou Jian,
Zhou Weiqiang
Publication year - 2008
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.24576
Subject(s) - boron trifluoride , thiophene , saturated calomel electrode , conductive polymer , materials science , polymerization , acetonitrile , polymer chemistry , scanning electron microscope , bromide , polymer , cyclic voltammetry , chemical engineering , electrochemistry , fourier transform infrared spectroscopy , nuclear chemistry , electrode , chemistry , organic chemistry , composite material , working electrode , engineering , catalysis
Abstract High‐quality freestanding and conducting poly[3‐(6‐bromohexyl)thiophene] (PBHT) films with electrical conductivity of 20 S/cm were synthesized electrochemically by direct anodic oxidation of 3‐(6‐bromohexyl)thiophene (BHT) in boron trifluoride diethyl etherate (BFEE). The oxidation potential of BHT in pure BFEE was measured to be only 1.2 V versus saturated calomel electrode, SCE much lower than that determined in acetonitrile (ACN) (1.8 V vs SCE). The polymer films obtained from this media were very shiny and flexible and can be easily cut into various shapes. The structure and morphology of the polymer films were investigated by UV‐vis, infrared, 1 H‐NMR spectroscopy, thermal analysis, and scanning electron microscopy (SEM). All these results indicated that the terminal bromide did not have negative effect on the electrochemical polymerization of BHT. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008