近年来文献中出现了一些以歧化催化剂用于炔烃聚合的尝试,例如以WCl_6-ph_4Sn、MoCl_5-ph_4Sn体系进行炔烃聚合反应,均有活性。我们在烯烃均相催化歧化反应的研究中,试探了将此类催化剂用于乙炔聚合,结果是:(1)试验过的7种催化体系均能使乙炔聚合,生成黑色不溶的高分子,红外光谱测定表明,得到的聚乙炔是顺式 In recent years, some attempts have been made in the literature to use disproportionation catalysts for the polymerization of alkynes, for example, alkyne polymerization with WCl_6-ph_4Sn and MoCl_5-ph_4Sn systems. In our research on homogeneous catalytic disproportionation of olefins, we explored the use of these catalysts for the acetylene polymerization. The results are: (1) All the seven catalytic systems tested can polymerize acetylene to form black insoluble polymer. The infrared Spectroscopic measurements show that the resulting polyacetylene is cis