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本文在前述工作的基础上,进一步按电子给予数(donor number)评选出一批可与环庚三烯搭配的第三组份,它们在本催化体系中,丙烯本体聚合等规度可在90％以上,催化剂聚合活性:每克三氯化钛得聚丙烯10公斤以上,并且由环庚三烯(CHT)及其搭配的第三组份的紫外吸收光谱,可说明聚合试验的结果,这就为今后评选第三组份提供了比较有效的手段,并对Ziegler-Natta聚合反应机制的深入理解是有益的。
Based on the above work, we further selected a number of third components that can be combined with cycloheptatriene according to the donor number. In the present catalytic system, the propensity of propylene bulk polymerization can be in the range of 90 % Or more, catalyst polymerization activity: 10 kg or more of polypropylene per gram of titanium trichloride, and the UV absorption spectrum of cycloheptatriene (CHT) and the third component with which it is used, illustrates the result of the polymerization test, which It provides a more effective means for the future selection of the third component, and it is beneficial to have a deep understanding of the Ziegler-Natta polymerization mechanism.