发明名称 Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents
摘要 A method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent, wherein production of undesirable byproducts resulting from polymer degradation is minimized. The reaction can be carried out at a temperature of 80° C. or less, and generally involves the use of an organic, nonmetallic catalyst, thereby ensuring that the depolymerization product(s) are substantially free of metal contaminants. In an exemplary depolymerization method, the catalyst is a carbene compound such as an N-heterocyclic carbene, or is a precursor to a carbene compound. The method provides an important alternative to current recycling techniques such as those used in the degradation of polyesters, polyamides, and the like.
申请公布号 US6911546(B2) 申请公布日期 2005.06.28
申请号 US20020330853 申请日期 2002.12.26
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION;UNIV LELAND STANFORD JUNIOR 发明人 HEDRICK JAMES LUPTON;KILICKIRAN PINAR;NYCE GREGORY WALKER;WAYMOUTH ROBERT M.
分类号 C07C59/285;C07C67/03;C07C68/06;C07D233/02;C07D233/04;C07D233/06;C07D233/16;C07D233/54;C07D307/33;C07F1/00;(IPC1-7):C07D233/38;C07F2/46 主分类号 C07C59/285
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