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Polyols catalyzed by double-metal cyanide or multi-metal cynide complexes in new organic complexing reagents via ring-opening polymerization of propylene oxide
Polyols catalyzed by double-metal cyanide or multi-metal cynide complexes in new organic complexing reagents via ring-opening polymerization of propylene oxide
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机译：新型金属络合剂中双金属氰化物或多金属氰化物配合物通过环氧丙烷的开环聚合反应催化的多元醇
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摘要
The present invention relates to a highly active double metal cyan salt (DMC) catalyst or a multi-metal cyan salt (MMC) catalyst, and more particularly, to a double metal cyan salt (DMC) using a lactate-based compound as a complexing agent. A catalyst or a multimetal cyanide salt (MMC) catalyst and a polyol manufacturing process using the same. The catalyst according to the present invention uses a lactate-based compound as a complexing agent as a metal cyanate salt (DMC) catalyst or a multimetal cyanide salt (MMC) catalyst, and optionally uses a polyether compound as a complexing agent. do. The catalyst according to the present invention is simpler to produce than the catalyst using tert-butyl alcohol (t-butyl alcohol) as a complexing agent, the amount of the organic complexing agent is less, and environmentally friendly. In addition, when the ring-opening polymerization of the epoxy monomer using this catalyst, the polymerization activation is very fast, so the induction time or induction period is short and the activity is very high. In addition, the prepared polyol has a low viscosity, excellent transparency, significantly high molecular weight, narrow molecular weight distribution, and unsaturation level or monool content.
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