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- W2118034293 abstract "Polymerization of 4-methyl-1-pentene was carried out at 40°C. in n-heptane with the use of catalysts prepared from TiCl4 and triethylaluminum or triisobutylaluminum. Yield of polymer at the end of a fixed time (4 hr.) was used as a measure of catalyst activity. Solubility of the polymer in boiling heptane was used as a measure of stereospecificity. Both activity and stereospecificity are strongly affected by the ratio of aluminum alkyl to titanium tetrachloride in the catalyst. Yield was greatest for catalysts in which Al/Ti was between 1.2 and 2.0. Highest percentage of heptane-insoluble polymer was obtained at Al/Ti equals; 1. Stereospecificity was little affected by the monomer/catalyst ratio in the ranges studied. Catalysts prepared from triethylaluminum gave slightly higher percentages of heptane-insoluble polymer than did triisobutylaluminum." @default.
- W2118034293 created "2016-06-24" @default.
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- W2118034293 date "1960-08-01" @default.
- W2118034293 modified "2023-09-26" @default.
- W2118034293 title "Ziegler polymerization of 4-methyl-1-pentene" @default.
- W2118034293 doi "https://doi.org/10.1002/pol.1960.1204514619" @default.
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