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合成带端羟基的反应性低聚物是目前令人感兴趣的研究课题之一。因为这种低分子量的预聚物((?)n<10~4),可作为大分子单体进行接枝或嵌段共聚合,获得一系列具有特殊性能的新型高分子材料。本文用高效负载型钛催化剂(TiCl_4/MgCl_2-Al(i-Bu)_3),以ZnEt_2为链转移剂,进行乙烯丙烯共聚,再通O_2氧化,首次从配位聚合途径合成了带端羟基的乙丙低聚物。这为乙丙弹性体的功能化增添了应用前景。
The synthesis of hydroxyl-terminated reactive oligomers is currently one of the most interesting research topics. Because of this low molecular weight prepolymer ((?) N <10 ~ 4), can be used as macromonomer grafting or block copolymerization, to obtain a series of new polymer materials with special properties. In this paper, ethylene-propylene copolymer was copolymerized with TiCl 4 / MgCl 2 -Al (i-Bu) 3 and ZnEt 2 as chain transfer agent, and then O 2 was oxidized. Ethylene propylene oligomer. This adds functionality to the functionalization of BSP elastomers.