专利号:US-5587431-A 优先权日:1995-04-21 标 题 :Synthesis of terminally unsaturated oligomers 发明人:GRIDNEV ALEXEI A; ITTEL STEVEN D 权利人:DU PONT 摘要:This invention relates to a method for preparing compositions comprising terminally unsaturated polymers of low molecular weight, referred to as oligomers or macromonomers. In particular, a first oligomer composition is obtained by free radical polymerization of a reaction mixture comprising monomers. Terminally unsaturated oligomers in the first oligomer composition, or a selected portion of the composition, are reinitiated into free radicals in order to continue their oligomerization to a desired endpoint. The process is useful for preparing an oligomer composition having a controlled degree of polymerization. The process is also useful for preparing block copolymers. Such oligomer compositions or block polymers are useful for preparing engineered or structured polymers used in making various end products, including plastics, coatings, films, and dispersants.
专利号:EP-0821700-B1 优先权日:1995-04-21 标 题:Synthesis of terminally unsaturated oligomers
专利号:JP-2005133101-A 优先权日:1995-04-21 标 题:Synthesis of terminally unsaturated oligomers
专利号:JP-3660687-B2 优先权日:1995-04-21 标题:Synthesis of terminally unsaturated oligomers
专利号:JP-4195451-B2 优先权日:1995-04-21 标 题 :Synthesis of terminally unsaturated oligomers
专利号:AU-703566-B2 优先权日:1995-04-21 标 题 :Synthesis of terminally unsaturated oligomers
参考标题:Photoredox/cobalt Dual‐catalyzed Decarboxylative Elimination Of Carboxylic Acids: Development And Mechanistic Insight 作者:Kaitie C. Cartwright,Ebbin Joseph,Chelsea G. Comadoll,Jon A. Tunge |发布日期:2020.9.25 摘要:Recently, Dual‐catalytic Strategies Towards The Decarboxylative Elimination Of Carboxylic Acids Have Gained Attention. Our Lab Previously Reported A Photoredox/cobaloxime Dual Catalytic Method That Allows The Synthesis Of Enamides And Enecarbamates Directly From N‐acyl Amino Acids And Avoids The Use Of Any Stoichiometric Reagents. Further Development, Detailed Herein, Has Improved Upon This Transformation'S