Citation: ZHANG Xuqing, SHEN Xueming, YANG Shiyong, LU Wei, ZHANG Jingyun. ELECTRONIC EFFECTS OF POLYFLUORINATED SUBSTITUENTS ON THE POLYMERIZATION AND THE PROPERTIES OF POLYTHIOPHENES*[J]. Chinese Journal of Polymer Science, ;1997, 15(1): 15-23. shu

ELECTRONIC EFFECTS OF POLYFLUORINATED SUBSTITUENTS ON THE POLYMERIZATION AND THE PROPERTIES OF POLYTHIOPHENES*

Received Date: 2 May 1995

Three series of polythiophenes containing fluoroalkoxy and fluoroether substituentswere prepared by electrochemical polymerization. The effect of substituents with fluoro-alkoxy or ether functional groups on the electrochemical polymerization of thiophene mono-mers and properties of the obtained polymers were analyzed. The introduction of a flu-oroether functional group at the 3-position of the thiophene ring leads to an increase ofthe oxidation potential of the monomer and to a decrease of the conductivity of the resulting polymers,even with the use of a CH2 group as spacer.Conversely,the presence of an oxygen atom directly at the 3-position of the thiophene ring,which offsets the negative withdrawing effect of fluoroalkyl groups,facilitates the synthesis of highly conducting polythiophenes.
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