发明名称 |
Novel Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst |
摘要 |
Provided are a complex prepared from ammonium salt-containing ligands and having such an equilibrium structural formula that the metal center takes a negative charge of 2 or higher, and a method for preparing polycarbonate via copolymerization of an epoxide compound and carbon dioxide using the complex as a catalyst. When the complex is used as a catalyst for copolymerizing an epoxide compound and carbon dioxide, it shows high activity and high selectivity and provides high-molecular weight polycarbonate, and thus easily applicable to commercial processes. In addition, after forming polycarbonate via carbon dioxide/epoxide copolymerization using the complex as a catalyst, the catalyst may be separately recovered from the copolymer.
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申请公布号 |
US2010029896(A1) |
申请公布日期 |
2010.02.04 |
申请号 |
US20090458998 |
申请日期 |
2009.07.29 |
申请人 |
OK MYUNGAHN;JEONG JISU;LEE BUN YEOUL;S SUJITH;CYRIAC ANISH;MIN JAEKI;SEONG JONGEON |
发明人 |
OK MYUNGAHN;JEONG JISU;LEE BUN YEOUL;S. SUJITH;CYRIAC ANISH;MIN JAEKI;SEONG JONGEON |
分类号 |
C08G65/26;C07C39/23;C07C249/00;C07F15/06 |
主分类号 |
C08G65/26 |
代理机构 |
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代理人 |
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地址 |
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