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在前报中已证明当用三氟化硼引发四氢呋喃(THF)聚合时,以环氧氯丙烷(ECH)为促进剂效果远较用环氧乙烷(EO)的效果好,在相近的浓度条件下,前者引发效率约为后者的2.5—6倍.本文将进一步对以环氧丙烷(PO)为促进剂的聚合反应进行研究。通过对产物组成与结构的测定,加深了对反应的了解。
It has been reported in the previous report that the effect of epichlorohydrin (ECH) as a promoter is much better than that of ethylene oxide (EO) when boron trifluoride is used to initiate tetrahydrofuran (THF) polymerization. At similar concentrations The former is about 2.5-6 times higher than the latter.In this paper, the polymerization reaction with propylene oxide (PO) as accelerant is further studied. Through the determination of the product composition and structure, deepening the understanding of the reaction.