发明授权
- 专利标题: Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby
- 专利标题(中): 精确控制二氧化碳/环氧交联共聚中的分子量和链形状控制,从而制备低分子量聚(碳酸亚烷基酯)
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申请号: US12952642申请日: 2010-11-23
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公开(公告)号: US08530616B2公开(公告)日: 2013-09-10
- 发明人: Jisu Jeong , SungJae Na , Sujith Sudevan , Myungahn Ok , YoungGyu Han , KwangJin Chung , Bun Yeoul Lee , Anish Cyriac
- 申请人: Jisu Jeong , SungJae Na , Sujith Sudevan , Myungahn Ok , YoungGyu Han , KwangJin Chung , Bun Yeoul Lee , Anish Cyriac
- 申请人地址: KR Seoul
- 专利权人: SK Innovation Co., Ltd.
- 当前专利权人: SK Innovation Co., Ltd.
- 当前专利权人地址: KR Seoul
- 代理机构: The Webb Law Firm
- 优先权: KR10-2010-0031457 20100406
- 主分类号: C08G59/68
- IPC分类号: C08G59/68 ; C08G65/10 ; C08G59/00 ; C08G65/04
摘要:
This invention relates to a method of preparing poly(alkylene carbonate) that has a molecular weight and polymer chain structure precisely controlled by adding a chain transfer agent composed of a compound having an alcohol or carboxylic acid functional group upon alternating copolymerization of an epoxide compound and carbon dioxide using a catalyst composed of a trivalent metal complex compound synthesized from a quaternary ammonium salt-containing Salen type ligand, and to a polymer compound prepared thereby. According to this invention, the polymer compound having a star-shaped chain as well as the polymer having a linear chain can be prepared. The low-molecular-weight poly(alkylene carbonate) has an —OH terminal group and can be used alone as a coating agent, etc., and also in mixtures with an isocyanate compound and thus can be easily utilized to prepare polyurethane.
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