引用本文:
王朝阳, 杨继华, 董为民, 逄束芬. 稀土催化丁二烯顺式聚合过程中的环化改性[J]. 应用化学,
1998, 15(6): 57-60.
Citation: Wang Chaoyang, Yang Jihua, Dong Weimin, Pang Shufen. Cyclization Modification in Course of Cis-polymerization of Butadiene Initiated by Rare Earth Catalyst[J]. Chinese Journal of Applied Chemistry, 1998, 15(6): 57-60.
Citation: Wang Chaoyang, Yang Jihua, Dong Weimin, Pang Shufen. Cyclization Modification in Course of Cis-polymerization of Butadiene Initiated by Rare Earth Catalyst[J]. Chinese Journal of Applied Chemistry, 1998, 15(6): 57-60.
稀土催化丁二烯顺式聚合过程中的环化改性
English
Cyclization Modification in Course of Cis-polymerization of Butadiene Initiated by Rare Earth Catalyst
Abstract:
Butadiene was polymerized to some extent in the presence of binary catalyst system NdCl3° 3i-PrO H-AlEt3 in toluene and the allylchloride was then added to the solution in order to cyclize the formed polybutadiene and cyclopolymerize the unreacted butadiene monomers. Influ-ences of the amount of rare earth catalyst, molar ratio of allylchloride to AlEt3, cyclization reaction time and temperature, and concentration of the monomers on the cyclization reaction have been investi-gated. The microstructures of the end polymers have been characterized by IR and 1H NMR measurements.
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Key words:
- butadiene
- / rare earth catalyst
- / cis-polymerization
- / allylchloride
- / cyclization
- / cyclopoly-merization
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