Catalytic ring-opening polymerization of cyclic monomers e.g. lactam, lactim, lactol or lactide, using polymerization catalyst comprising diamine-zinc complexes and/or polynuclear aminoethoxide-zinc complexes

摘要

Catalytic ring-opening polymerization of cyclic monomers using polymerization catalyst comprising diamine-zinc complexes and/or polynuclear aminoethoxide-zinc complexes, is claimed. An independent claim is included for producing a catalyst for ring-opening polymerization of cyclic monomers, comprises reacting divalent zinc compound with a compound comprising (1R,2R)-N,N,N',N'-tetramethylcyclohexan-1,2-diamine (TMCDA), (1R,2R)-N,N,N',N'-tetraethylcyclohexan-1,2-diamine (TECDA), (1R,2R)-N,N,N',N'-diethyldimethylcyclohexan-1,2-diamine (DEDMCDA), (1R,2R)-N,N,N',N'-triethylmethylcyclohexan-1,2-diamine (TEMCDA), (1R,2R)-N,N,N',N'-ethyltrimethylcyclohexan-1,2-diamine (ETMCDA), (1R,2R)-N,N,N',N'-pentyltrimethylcyclohexan-1,2-diamine (PTMCDA), sodium 2-(methyl(oxidomethyl)amino)ethanolate or N-methyl-2,2'-bis(dimethyl)-diethanolamine.