| 摘要 |
PURPOSE:To facilitate the formation of a high-MW polymer, by polymerizing a 1-monoalkyl(1-4C)dimethylsilyl-1-propyne in the presence of a specified polymerization catalyst. CONSTITUTION:A group V transition metal compound (e.g., tantalum pentachloride or tantalum pentabromide) is used as a catalyst. Namely, a 1-monoalkyl (1-4C)dimethylsilyl-1-propyne of the formula (wherein R is methyl, ethyl, propyl, or butyl) is polymerized at about 50-100 deg.C in the presence of about 0.01- 20mol% above catalyst in a solvent such as benzene, carbon tetrachloride, or cyclohexane.
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