专利号:US-6512081-B1 优先权日:1997-07-21 标题:Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents 发明人:RIZZARDO ENZIO; THANG SAN HOA; MOAD GRAEME 权利人:E I DUPONT NEMOURS AND COMPANY; COMMW SCIENT IND RES ORG 摘要:This invention relates to the synthesis of dithiocarboxylic acid esters by reaction of bis(thioacyl) disulphides, thioacetals or vinylidane bis(thioether) with free-radicals (optionally in the presence of monomers). The invention also relates to processes for the synthesis of polymers utilising these dithioesters as polymerisation regulators (chain transfer agents) or to the use of bis(thioacyl) disulphides to generate dithioester chain transfer agents in situ.
专利号:US-6100350-A 优先权日:1996-02-23 标题 :Branched polymer synthesis 发明人:WILCZEK LECH; MCCORD ELIZABETH FORRESTER 权利人:DU PONT; COMMW SCIENT IND RES ORG 摘要:PCT No. PCT/US97/02913 Sec. 371 Date Aug. 19, 1998 Sec. 102(e) Date Aug. 19, 1998 PCT Filed Feb. 18, 1997 PCT Pub. No. WO97/31031 PCT Pub. Date Aug. 28, 1997This invention relates to a process for the synthesis of addition polymers containing branches upon branches and having a polymerizable olefin end group by a convenient one-pot copolymerization of selected vinyl monomers with chain polymerization initiators and a method to provide olefin end groups by chain transfer or termination agents; and polymers produced thereby.
专利号:US-6291620-B1 优先权日:1994-11-09 标 题:Polymer synthesis 发明人:MOAD GRAEME; MOAD CATHERINE LOUISE; KRSTINA JULIA; RIZZARDO EZIO; DARLING THOMAS ROBERT; BERGE CHARLES THOMAS 权利人:DU PONT; COMMW SCIENT IND RES ORG 摘要:Process for the synthesis of block polymers, homopolymers and copolymers of narrow polydispersity having formula (1) by contacting selected vinyl monomer(s), vinyl-terminated compound(s) and free radicals in which effective control of production of polymer is achieved by controlling the mole ratio of vinyl monomer(s), vinyl-terminated compound(s) and free radicals relative to one another; and polymers produced thereby
专利号:US-7671152-B2 优先权日:2005-12-22 标题:Surfactantless synthesis of amphiphilic cationic block copolymers 发明人:PARKER DANE KENTON; KULIG JOSEPH JOHN 权利人:GOODYEAR TIRE & RUBBER 摘要:The present invention is directed to a method of producing an amphiphilic block copolymer, including the steps of:n (1) preparing a first aqueous polymerization medium which is comprised ofn (a) 4-vinylpyridine, (b) a trithiocarbonate RAFT agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium by the reaction of a latent surfactant with a surfactant activator; n (2) polymerizing the 4-vinylpyridine within the first aqueous polymerization medium in the presence of a first free radical initiator to produce a poly(4-vinylpyridine); (3) protonating the poly(4-vinylpyridine) to form a protonated poly(4-vinylpyridine) RAFT macroinitiator; (4) preparing a second aqueous polymerization medium which is comprised of the protonated poly(4-vinylpyridine) RAFT macroinitiator and a monomer containing ethylenic unsaturation but is exclusive of a surfactant; and (5) polymerizing the protonated poly(4-vinylpyridine) RAFT macroinitiator and monomer containing ethylenic unsaturation within the second aqueous medium in the presence of a second free radical initiator and a temperature less than 100° C. to produce an amphiphilic block copolymer of the 4-vinylpyridine and monomer containing ethylenic unsaturation.
专利号:US-7709221-B2 优先权日:2005-11-17 标 题 :Biosensor with inorganic-organic hybrid polymer coating 发明人:ROSE KLAUS; LAFUENTE ROBERTO FERNANDEZ; GUISAN JOSE MANUEL; BETANCOR LORENA; JAFFREZIC NICOLE; DZYADEVYCH SERGEI 权利人:FRAUNHOFER GES FORSCHUNG; INST OF CATALYSIS; LYON ECOLE CENTRALE 摘要:The present invention relates to a biosensor comprising a substrate with a coating system in which a Ruthenium complex and an enzyme is integrated. The enzyme is able to convert bioproducts, e.g. glucose, fructose or glycerol. The depletion of oxygen during these converting reactions can be monitored via the fluorescence of the Ruthenium complex. The inventive biosensor can be used in biotechnological processes, e.g. the synthesis of biofuels.
专利号:US-7728088-B2 优先权日:2002-08-06 标题 :Synthesis of statistical microgels by means of controlled radical polymerisation 发明人:DESTARAC MATHIAS; BAVOUZET BRUNO; TATON DANIEL 权利人:RHODIA OPERATIONS 摘要:The invention relates to a method of preparing statistical microgels. The inventive method comprises a step involving the radical polymerisation of a composition containing: at least one monoethylenically-unsaturated monomer, at least one multiethylenically-unsaturated monomer, a free radical source and a control agent. The invention also relates to first generation microgels thus prepared and all the compounds resulting from said microgels (next-generation microgels).
参考文献:10.1007/s11172-013-0041-1 摘要:Novakov IA, Dang NK, Vaniev MA, Sidorenko NV. On the stabilization and methods for modification of nanosize particles used for the preparation of polymer-inorganic nanocomposites. Russian Chemical Bulletin. 2013 Feb;62(2):276–84. doi: 10.1007/s11172-013-0041-1.