Citation: ZHANG Xuqing, SHEN Xueming, YANG Shiyong, LU Wei, ZHANG Jingyu. STRUCTURAL ANALYSIS AND ENVIRONMENTAL STABILITY OF POLYFLUORINATED GROUP SUBSTITUTED POLYTHIOPHENES*[J]. Chinese Journal of Polymer Science, ;1996, 14(4): 330-337. shu

STRUCTURAL ANALYSIS AND ENVIRONMENTAL STABILITY OF POLYFLUORINATED GROUP SUBSTITUTED POLYTHIOPHENES*

Received Date: 21 July 1995

Electrochemical polymerization of 3-fluoroalkoxy and 3-fluoroether thiophenes givespolymers with relatively high molecular weights and good processibility. Investigationof these polymers by means of GPC indicates that an increase in the number of fluorineatoms in the fluorinated group results in a decrease in degree of polymerization of thepolymers in the same polythiophene series. As shown by NMR and FTIR, the polyfluo-rinated group substituted polythiophenes have regular 2, 5-coupling in their main chains.The SEM micrographs of the polymer films exhibit that polymer (1)-poly [3-2,2,3,3-tetrafluoro-propoxy) thiophene] possesses more regular structure than the other polymers do.Substitution of polythiophenes by fluorinated groups leads to the polymers with high electric,electrochemical and thermal stability.
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