Chinese Journal of Applied Chemistry ›› 1983, Vol. 0 ›› Issue (1): 79-86.
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Yang Mujie, Cai Yiping, Wang Zheng, Sun Junguan, Shen Zhiquan
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Abstract: A new"family"of coordination catalysts based on rare-earth for stereos-pecific polymerization of acetylene has been developed for the preparation of high cis(>90%)polyacetylene(PA)films at 30℃. Rare-earth PA was silvery flexible with metallic luster. The highly conducting complexes of rare-earth PA are obtained by do poing with electron acceptors(I2,Br2,etc.). The maximum conductivity(σ)of doped films at room temperature is approxima-tely 1000 ohm-1·cm-1 for iodine,corresponding to a concentration of about 12.5mol% where σ has increased by some 11 orders of magnitude. The do-ping effect is related to the volume filling fraction of the fibrils of PA.The configuration of polymer and the extent of oxidation of the films also show a certain influences on the doping effect. The resulted polyacetylene-halogen complexes have been characterized using techniques of infrared spectrophotometry, differential scanning calorimetry,x-ray diffraction,scan-ning electron micrography,and electrical conductivity measurements.
Yang Mujie, Cai Yiping, Wang Zheng, Sun Junguan, Shen Zhiquan. HIGHLY CONDUCTINIG HALOGEN DOPEDFILMS OF RARE-EARTH POLYACETYLENE[J]. Chinese Journal of Applied Chemistry, 1983, 0(1): 79-86.
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