📜六甲基二硅氧烷,2,4,6,8-四甲基-2,4,6,8-四乙烯基环四硅氧烷置于lewatit Spc 118体系中,化学反应 4.0H,反应生成 乙烯基甲基双(三甲基硅氧基)硅烷 参考文献:Kinetische Untersuchung Zur Platinkatalysierten Hydrosilylierung Von Vinylsiloxanen Mit Hydrogensiloxanen 标题:Kinetische Untersuchung Zur Platinkatalysierten Hydrosilylierung Von Vinylsiloxanen Mit Hydrogensiloxanen 摘要:A Kinetic Investigation Of The Platinum-Catalysed Hydrosilylation Of Monofunctional Oligomeric Vinylsiloxanes By Monofunctional Oligomeric Hydrogensiloxanes Was Performed Under Stoichiometric Conditions With Use Of Quantitative H-1-NMR Spectrometry. The Reaction Rate Up To 50 % Conversion Can Be Expressed By V=k [pt]. During Further Hydrosilylation The Kinetic Changed To Second Order. No Induction Period Was Observed. A Hydrogensiloxane With A Dimethylsilyl End Group Gives Much Higher Rates Than A Siloxane With A Methylsiloxy Group. The Main Reactions Of All Hydrosilylations,Determined By Gc-Ms And Si-29-NMR,Are Beta-Additions. Less Then 5 % Alpha-Products Are Obtained. DOI:10.1002/prac.19943360306
专利号:US-8049024-B2 优先权日:2006-09-16 标 题 :Heterogenized rhodium complexes, methods of their synthesis and application as hydrosilylation catalysts 发明人:MARCINIEC BOGDAN; FIEDOROW RYSZARD; SZUBERT KAROL; KOWNACKI IRENEUSZ; FRANCZYK ADRIAN; DUTKIEWICZ MICHAL; LESZCZAK KINGA 权利人:UNIV ADAM MICKIEWICZ 摘要:The subjects of the invention are new heterogenized rhodium complexes, the methods of their synthesis and their application as catalysts for synthesis of organosilicon compounds by hydrosilylation. The subject of the invention are new siloxide rhodium(I) complexes immobilised on the silica surface, of the general formula 1. [(≡SiO)(L)Rh(diene)] The second subject of the invention is the method of synthesis of the new rhodium complexes of the general formula 1. The third subject of the invention is the method of obtaining the organosilicon compounds in the reaction of hydrosilylation between the selected alkenes or functionalised alkenes containing the terminal Câ•?C bond and the appropriate compounds containing the Siâ•?H bond selected from silanes, (poly)siloxanes and (poly)carbosiloxanes, in the presence of heterogenized rhodium catalysts, of the general formula 1.
专利号:US-11767388-B1 优先权日:2019-09-18 标 题 :Silicon-functionalized rubber 发明人:ENSIGN SETH CODY; VIELHABER MARGARET FLOOK; JOHNGRASS JENA LYNN; MA LIQING 权利人:GOODYEAR TIRE & RUBBER 摘要:The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator. The functionalized polydiene rubber composition made by this method is comprised of a polydiene rubber which is functionalized at its chain ends with a silicon containing group.
专利号:US-4668812-A 优先权日:1985-12-31 标 题 :Process for the preparation of olefinic silanes and siloxanes 发明人:QUIRK JENNIFER M; KANNER BERNARD 权利人:UNION CARBIDE CORP 摘要:A novel synthesis for silanes and siloxanes containing olefinic bonds wherein an aminosilane, siloxane alkoxysilane or alkylalkoxysilane and an olefin undergo a dehydrocondensation in the presence of a rhodium or ruthenium catalyst.
专利号:EP-2076521-B1 优先权日:2006-08-16 标题:Synthesis of silylsubstituted 1,2-alkynes 发明人:MARCINIEC BOGDAN; DUDZIEC BEATA; SZUBERT KAROL; WALKOWIAK JEDRZEJ 权利人:UNIV ADAM MICKIEWICZ
专利号:EP-2076521-A1 优先权日:2006-08-16 标 题:New silylsubstituted 1,2-alkynes and synthesis of silylsubstituted 1,2-aikynes
专利号:US-6787601-B2 优先权日:2001-03-26 标题 :Polymer synthesis 发明人:LAMOLA ANGELO A; BLANKENSHIP ROBERT M 权利人:SHIPLEY CO LLC 摘要:Disclosed is a method of preparing emulsion polymers and a method of preparing porous dielectric materials using the emulsion polymers.