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稀土催化体系合成顺式1,4-聚丁二烯的研究表明,还原组分一氢二异丁基铝(HAl)优于三异丁基铝(Al)。唐学明等认为,对镍系催化体系丁二烯聚合,当Al中含有一定HAl时,对丁二烯聚合的动力学行为无影响,但HAl含量在40—60％(mol)时,催化活性最高,并对聚丁二烯的微观结构无影响。本工作采用Ni-HAl-B催化体系合成了顺式1,4-聚丁二烯,研究了HAl对丁二烯的聚合行为以及聚丁二烯结构及其性能的影响。
Studies on the synthesis of cis 1,4-polybutadiene in the rare earth catalyst system show that HAl, a reducing component, is superior to triisobutylaluminum (Al). Tang Xueming et al. Showed that the catalytic activity of butadiene polymerization was not affected when a certain amount of HAl was contained in Al, but the highest catalytic activity was observed when the content of HAl was 40-60 mol% , And had no effect on the microstructure of polybutadiene. In this work, cis 1,4-polybutadiene was synthesized using Ni-HAl-B catalyst system. The effects of HAl on the polymerization of butadiene and the structure and properties of polybutadiene were studied.