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US4264503A Polymerization process using a sodium carboxylactamate catalyst 失效
使用羧甲基纤维素钠催化剂的聚合方法

Polymerization process using a sodium carboxylactamate catalyst
摘要:
The polymerization of 2-pyrrolidone is achieved in high yield in the presence of a sodium-derived catalyst activator produced by the reaction of carbon dioxide with the sodium lactamate derived from the reaction of a sodium alkoxide and a 5-7 membered-ring lactam in an inert liquid nonsolvent.
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