Monomer–Isomerization Polymerization. XIV. Monomer–Isomerization Polymerization of 4-Methyl-2-pentene with Ziegler-Natta Catalyst
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概要
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4-Methyl-2-pentene (4M2P) was found to polymerize in the presence of TiCl<SUB>3</SUB>–Al(C<SUB>2</SUB>H<SUB>5</SUB>)<SUB>3</SUB> catalyst, and to yield a high molecular weight isotactic homopolymer of 4-methyl-1-pentene (4M1P). From the fact that the isomerizations from 4M2P to its positional isomers were also observed, it was concluded that this polymerization was induced by a monomer-isomerization polymerization mechanism, <I>i.e.</I> 4M2P isomerized first to 4M1P, which then homopolymerized. The rates of both polymerization and isomerization were affected by the Al/Ti molar ratio of catalyst system, and by the addition of transition metal compounds such as nickel acetylacetonate [Ni(acac)<SUB>2</SUB>]. It was concluded that the maximum rates were observed at Al/Ti=3 and Ni/Ti=0.2 in molar ratio.
- 公益社団法人 日本化学会の論文
著者
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Endo Kiyoshi
Department Of Agricultural Chemistry Faculty Of Agriculture Niigata University
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Otsu Takayuki
Department Of Applied Chemistry Faculty Of Engineering Osaka City University
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Shimizu Akihiko
Department of Applied Chemistry, Faculty of Engineering, Osaka City University
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Nagahama Hiroharu
Department of Applied Chemistry, Faculty of Engineering, Osaka City University
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