| 摘要 |
PURPOSE:To obtain the title copolymer useful as a material for permselective membranes for gas or liquid mixtures, by copolymerizing 1-trimethylsilylpropyne with a specified acetylene monomer in the presence of a main polymerization catalyst and a promotor. CONSTITUTION:1-Trimethylsilylpropyne (A) is copolymerized with a substituted acetylene monomer (B) of formula I [wherein R<1> is H, a halogen or a (substituted) alkyl, R<2> is a (substituted) phenyl, (substituted) alkyl or formula II, R<3-4> are each a (substituted) alkyl, R<5> is a 2C or higher (substituted) alkyl or (substituted) phenyl] at 30-100 deg.C for 2-36hr in a polymerization solvent (e.g., toluene) by using a total monomer concentration of 0.1-5mol/l of solvent, using tantalum and/or niobium chlorides or bromides as a main polymerization catalyst and using an organotin compound (e.g., tetraphenyltin) as a promotor at a molar ratio of 1-0.1:0.1-1.
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