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CAS号2948-46-1 二羟基-1,4-二异丙基苯 | CAS号123-09-1 4-氯茴香硫醚 | CAS号13291-18-4 异丙烯基溴化镁 | CAS号1730-25-2 烯丙基溴化镁 | CAS号120-61-6 对苯二甲酸二甲酯 | CAS号106-46-7 1,4-二氯苯 | CAS号19493-09-5 methylidene tri... | CAS号7374-80-3 2,2'-(1,4-Pheny... | CAS号106-37-6 对二溴苯 | CAS号100-18-5 1,4-二异丙基苯 | CAS号2889-58-9 1-(2-is°Cyanato...📜1,4-二氯苯置于bis(Triphenylphosphine)Nickel(II) Chloride体系中,用 苯 用作溶剂,化学反应 5.0H,反应生成1,4-二异丙烯基苯
参考文献:Selective Mono-Arylation And-Alkylation Of Chlorophenyl Alkyl Sulfides By Nickel Catalysed Cross-Coupling With Grignard Reagents
标题:Selective Mono-Arylation And-Alkylation Of Chlorophenyl Alkyl Sulfides By Nickel Catalysed Cross-Coupling With Grignard Reagents
摘要:
Doi:10.1016/s0040-4039(00)85672-5
海关参考信息
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专利信息
专利号:US-2006293466-A1
优先权日:2003-06-20
标 题:Methods for synthesis of graft polymers
发明人:GAUTHIER MARIO; YUAN ZHONGSHUN
权利人:UNIV WATERLOO
摘要:A process for the synthesis of arborescent polymers comprises epoxidation of a first polymer and grafting thereto a second polymer having groups reactive to the epoxide groups on the first polymer. The epoxidation and grafting steps can be repeated. In an additional embodiment, the present invention provides a one-pot method for the synthesis of arborescent polymers. In a reaction pot, a first polymer is copolymerized and then reacted with an activating compound in order to generate a polyfunctional macroinitiator. Monomers are then added to the reaction pot, the monomers having functional groups reactive towards reactive sites on the first polymer.
专利号:US-5359016-A
优先权日:1993-03-29
标 题 :Process for the synthesis of styrene-isoprene rubber
发明人:HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyl tetrahydrofurfuryl ether modifier, wherein the molar ratio of the modifier to the lithitium initiator is within the range of 2:1 to 40:1. The subject invention further discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) 2,2-ditetrahydrofurylpropane as a modifier, wherein the molar ratio of the modifier to the lithium initiator is within the range of 1:1 to 40:1.
专利号:US-5767211-A
优先权日:1996-05-02
标 题:Synthesis of multi-functional hyperbranched polymers by polymerization of di-or tri-vinyl monomers in the presence of a chain transfer catalyst
发明人:GUAN ZHIBIN
权利人:DU PONT
摘要:This invention concerns the synthesis of multi-functional hyperbranched polymers by free radical polymerization of di- or tri-vinyl monomers in the presence of a chain transfer catalyst and a non-peroxide free radical initiator. The low viscosity and high functionality of these polymers make them useful for automotive coatings and for photopolymerization applications.
专利号:US-6107408-A
优先权日:1998-02-26
标题 :Processes for improving linking efficiencies in the synthesis of star polymers
发明人:QUIRK RODERIC PAUL; LETCHFORD ROBERT JAMES; SCHWINDEMAN JAMES ANTHONY
权利人:FMC CORP
摘要:Processes for the synthesis of star or multi-branched polymers and the resultant polymers. One or more alkadiene monomers are polymerized in the presence of suitable organometallic initiators and subsequently coupled to form star polymers. Prior to coupling, one or more alkenylsubstituted aromatic hydrocarbons are incorporated at the living ends of the polydienyl anions to provide increased linking efficiencies.
专利号:US-5336739-A
优先权日:1992-04-06
标题:Alkyl tetrahydrofurfuryl ethers as anionic polymerization modifier in the synthesis of rubbery polymer
发明人:HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly discovered that various compounds, such as alkyl tetrahydrofurfuryl ethers, can be used to modify anionic polymerizations of conjugated diene monomers. These modifiers can be used to polymerize isoprene monomer into high 3,4-polyisoprene at excellent polymerization rates. This is in contrast to the modifiers such as tetramethylethylene diamine which are typically used to modify such polymerizations. This invention more specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) a modifier which is an alkyltetrahydrofurfuryl ether selected from the group consisting of ethyltetrahydrofurfuryl ether, propyltetrahydrofurfuryl ether, and butyltetrahydrofurfuryl ether. In the practice of this invention, the utilization of ethyltetrahydrofurfuryl ether is highly preferred since its use results in faster polymerization rates and higher vinyl contents in the resultant polymer.
专利号:US-5448003-A
优先权日:1992-04-06
标题:Synthesis of rubbery polymer using anionic polymerization modifier
发明人:HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly discovered that various compounds, such as alkyl tetrahydrofurfuryl ethers, can be used to modify anionic polymerizations of conjugated diene monomers. These modifiers can be used to polymerize isoprene monomer into high 3,4-polyisoprene at excellent polymerization rates. This is in contrast to the modifiers such as tetramethylethylene diamine which are typically used to modify such polymerizations. This invention more specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyltetrahydrofurfuryl ether modifier, wherein the alkyl group in the alkyltetrahydrofurfuryl ether modifier contains from 6 to about 10 carbon atoms. In the practice of this invention, the utilization of alkyltetrahydrofurfuryl ethers having alkyl groups which contain from 6 to 10 carbon atoms, such as hexyltetrahydrofurfuryl ether, is highly preferred since their use does not results in the creation of odor problems.