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- W2365203787 abstract "Highly reactive polyisobutylenes is prepared in rotating packed bed for the first time with combination technology of high-gravity and cationic polymerization.The effects of the operating parameters(rotating speed,volume ratio of monomer and catalyst,monomer concentration) on monomer conversion,molecular weight,molecular weight distribution,and molor fraction of exo-olefin end groups of polyisobutylenes(PIB) are investigated in the experiments.Experimental results indicate that HRPIB can be controllably produced by adjusting operating parameters.HRPIB with the molecular weight of 1 600-3 400 g/mol,molecular weight distribution of 2.2-3.0,molor fraction of exo-olefin end groups of about 85%,and single pass conversion of maximum 84% is obtained in the experiments,product index is better than traditional process.The mean residence time of the products is greatly reduced from 20-300 min to less than 1 s;the production efficiency is greatly increased." @default.
- W2365203787 created "2016-06-24" @default.
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- W2365203787 date "2011-01-01" @default.
- W2365203787 modified "2023-09-26" @default.
- W2365203787 title "Preparation highly reactive polyisobutylenes in rotating packed bed" @default.
- W2365203787 hasPublicationYear "2011" @default.
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