METHOD FOR PREPARING CARBON DIOXIDE/EPOXIDE COPOLYMERS CONTAINING ETHER LINKAGES

Provided is a method for preparing poly(alkylene carbonate) containing ether linkages, by the copolymerization of an epoxy compound and carbon dioxide, with a trivalent metal complex prepared from a salen type ligand containing a quaternary ammonium salt, and a double metal cyanide (DMC) catalyst to...

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Bibliographische Detailangaben
Hauptverfasser:	HAN, YONG GYU, JOBI, KODIYAN, VARGHESE, JEONG, JI SU, OK, MYUNG AHN, NA, SUNG JAE, CHUNG, KWANG JIN, SUDEVAN, SUJITH, LEE, BUN YEOUL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Provided is a method for preparing poly(alkylene carbonate) containing ether linkages, by the copolymerization of an epoxy compound and carbon dioxide, with a trivalent metal complex prepared from a salen type ligand containing a quaternary ammonium salt, and a double metal cyanide (DMC) catalyst together. The amount of ether linkages can be controlled by regulating the weight ratio of two catalysts and the carbon dioxide pressure. L'invention concerne un procédé de préparation de poly(carbonate d'alkylène) contenant des liaisons éther, par copolymérisation d'un composé époxyde et de dioxyde de carbone, avec un complexe de métal trivalent préparé à partir d'un ligand de type salen contenant un sel d'ammonium quaternaire et un catalyseur de cyanure métallique double (DMC) mis ensemble. Le degré des liaisons éther peut être contrôlé par régulation du rapport en poids de deux catalyseurs et de la pression du dioxyde de carbone.