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用α二亚胺型BDIE配体(N,N′(2,6二异丙基苯基)乙二亚胺)与氧联锌铝醇盐([ZnAl])以配位的方式制备了高位阻催化体系BDIE·[ZnAl],并催化二氧化碳与氧化环己烯共聚.研究了各种因素对该反应的影响,发现最适宜的反应条件为BDIE[ZnAl]的摩尔比为0.5、反应温度为80℃、催化剂浓度为0.1gmL、二氧化碳压力为2MPa.在此条件下反应24h其催化效率达到31.6gg与其它高位阻体系相比,该催化剂用成本低的异丙醇铝和无水醋酸锌代替二乙锌,聚合操作过程简单,是一种有发展前景的催化体系.
Coordination was made with the octydiamine-type BDIE ligand (N, N ’(2,6-diisopropylphenyl) ethylenediimine) and zinc oxide aluminum alkoxide ([ZnAl] The catalytic effect of BDIE · [ZnAl] on the catalytic performance of BDIE · [ZnAl] catalyzed copolymerization of carbon dioxide and cyclohexene oxide was studied. The optimum reaction conditions were found to be that the molar ratio of BDIE [ZnAl] was 0.5 and the reaction temperature was 80 ℃, the concentration of catalyst is 0.1gmL, the pressure of carbon dioxide is 2MPa. Under these conditions, the reaction efficiency reaches 31.6gg. Compared with other high resistance systems, the catalyst is replaced by low cost aluminum isopropoxide and anhydrous zinc acetate Diethyl zinc, the polymerization process is simple, is a promising catalytic system.