POLYMERIZATION OF PHENYLACETYLENES .9. POLYMERIZATION OF BETA-NAPHTHYLACETYLENE BY WCL6 AND MOCL5

被引:25
作者
OHTORI, T
MASUDA, T
HIGASHIMURA, T
机构
[1] Department of Polymer Chemistry, Kyoto University, Kyoto
关键词
Coordination polymerization; Crystallinity; Electric conductivity; Geometric structure; Heat treatment; Molybdenum pentachloride; Naphthylacetylene j tung-sten hexachloride;
D O I
10.1295/polymj.11.805
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The polymerization of β-naphthylacetylene by WCl- and MoCl-based catalysts was investigated. The WCl and MoCl catalysts were both found to be highly active. The polymer obtained with WCl [poly(βNA)–W] was soluble, and its highest molecular weight was 9, 200, which is by far the highest value reported so far. The polymer formed with MoCl [poly(βNA)–Mo] was hardly soluble. According to the results from IR spectroscopy and differential thermal analysis, poly(βNA)–W was rich in trans structure, whereas poly(βNA)–Mo was cis-rich. The X-ray diffraction patterns showed that poly(βNA)–W was amorphous, while poly(βNA)–Mo was crystalline. The heat treatment of poly(βNA)–Mo caused cis-to-trans isomerization, and rendered the polymer more soluble. The electric conductivity and paramagnetic property of the polymers are also described. © 1979 The Society of Polymer Science, Japan.
引用
收藏
页码:805 / 811
页数:7
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