【摘要】 ＣＨ_３ＣＯＳｂＣｌ_６催化四氢呋喃聚合的研究栗方星，王红军，马克勤（南开大学化学系，天津，３０００７１）关键词聚四氢呋喃，乙酰基六氯锑酸盐，表观聚合反应速率常数，五氯化锑ＴＨＦ聚合为平衡聚合反应应［１，２］，文献报道［３，４］Ｅｔ３ＯＢＦ４、Ｅｔ３Ｏ...更多还原

【Abstract】 In this paper,a synthetic method of PTHF with CH3COSbCl6 as catalyst was introduced and the mechanism and kinetic behaviour of polymerization of THF were discussed in detail. It was found that the concentration of living centre rose continuously in the THF polymerization,The time of the living centre concentration getting to maximum is 30,20 and 6.5 min at 7℃, 15℃ and 22℃ respectively, then the mumber of living centre begin to reduce. The phenomenon which small amount of water leads to the reduction of living centre has been explained in the relevant report[7]. We think that the trace of water can kill part of living centre, but the hydroxyl will be produced .So the number of the living centre calculated from hydroxyl value can not be influenced,the phenomenon was explained in detail in this paper. The polymerization temperature has a great influence on the polymerization rate constants. The apparent rate constants of the polymerization are 7.90×10-3,14.23× 10-3 and 23.35×10-3 L/(mol·s)respectively at 7, 15 and 22℃.更多还原