Copolymerization of carbon dioxide with propylene oxide catalyzed by O-methylated or crosslinked poly(p-hydroxystyrene)/diethylzinc system
Copolymerization of carbon dioxide with propylene oxide catalyzed by O-methylated or crosslinked poly(p-hydroxystyrene)/diethylzinc system
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DOI：
10.1002/macp.1980.021810805
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发表时间：
1980-08
影响因子：
2.5
通讯作者：
E. Tsuchida;M. Kasai
中科院分区：
文献类型：
--
作者：
E. Tsuchida;M. Kasai
以部分o -甲基化或交联的聚[1-（4-羟基苯基）乙烯]和Zn(C2H5)2为原料，制备了CO2与1,2-环氧丙烷共聚的有效催化剂。甲基化或交联率为30% ~ 40%的催化剂活性最高。通过交联降低了催化剂在共聚过程中的失活，提高了共聚物的收率。催化剂结构的高刚性是其具有较高活性和稳定性的原因。
Effective catalysts for the copolymerization of CO2 with 1,2-epoxypropane were prepared from partially O-methylated or crosslinked poly[1-(4-hydroxyphenyl)ethylene] and Zn(C2H5)2. The highest activity was obtained with catalysts of 30 to 40% methylation or crosslinking. Inactivation of the catalysts during the copolymerization was decreased by crosslinking, increasing the yield of the copolymer. The higher rigidity of the catalyst structure is responsible for its higher activity and stability.