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合成出一种新型M o(Ⅵ)系配合物M oO2C l2(M ePh2PO)2,并用IR、1H-NM R对其结构进行表征。首次报道以M oO2C l2(M ePh2PO)2为催化剂,叔丁基过氧化氢(TBHP)为氧源,催化烯丙醇的直接聚合反应,产物为2,3环-氧-1丙-醇低聚物。此反应体系条件温和,易于控制;IR、1H-NM R及LC-M S的分析结果说明产物为低聚物。考察了单体与催化剂的比例、反应温度、反应时间、溶剂及氧源等对聚合反应及产物分子量的影响:甲苯是该反应的最佳溶剂;以甲苯为溶剂,反应温度80℃,反应时间4 h,催化剂/烯丙醇/TBHP(摩尔比)为1/200/200,此时产物分子量可达到666。
A new M o (Ⅵ) complex MoO 2 Cl 2 (M ePh 2 PO) 2 was synthesized and its structure was characterized by IR and 1H-NMR. It was first reported that the direct polymerization of allyl alcohol catalyzed by M oP 2 C 2 (M ePh 2 PO) 2 as catalyst and tert-butyl hydroperoxide (TBHP) as oxygen source catalyzed the direct 2,3-cyclooxy-1-propanol Polymers. The reaction system was mild and easy to control. The results of IR, 1H-NMR and LC-MS showed that the product was oligomer. The effects of the ratio of monomer to catalyst, reaction temperature, reaction time, solvent and oxygen source on the polymerization reaction and product molecular weight were investigated. Toluene was the best solvent for this reaction. With toluene as solvent, the reaction temperature was 80 ℃ and the reaction time 4 h, the catalyst / allyl alcohol / TBHP (molar ratio) 1/200/200, the product molecular weight can reach 666 at this time.