📜甲基乙烯基二氯硅烷置于乙醇体系中,化学反应生成2,4,6,8-四甲基-2,4,6,8-四乙烯基环四硅氧烷 参考文献:Voronkov,M.G. Et Al.,Journal Of General Chemistry Of The Ussr,1969,Vol. 39,P. 533-539 标题:Voronkov,M.G. Et Al.,Journal Of General Chemistry Of The Ussr,1969,Vol. 39,P. 533-539
专利号:US-5856402-A 优先权日:1996-12-30 标题 :Process for the synthesis of multi-modal aqueous dispersions of polysiloxanes 发明人:CRAIG DANIEL HORACE; MORGAN WAYNE FRANCIS 权利人:GEN ELECTRIC 摘要:A process for the acid-catalyzed synthesis of polysiloxane emulsions is discussed. The process comprises preheating an aqueous reaction mixture, optionally comprising polysiloxane emulsion seeds, and optionally containing a surfactant, to a temperature of up to about 110 DEG C. and adding to the aqueous reaction mixture, water, an acid catalyst surfactant, and a polysiloxane precursor to form a polysiloxane emulsion comprising essentially multi-modal, optionally multi-layered particles having desired multi-modal particle sizes in a range of from about 100 nm to about 2 microns.
专利号:US-5900460-A 优先权日:1997-01-03 标题 :Process for the synthesis of structured aqueous dispersions of polysiloxanes 发明人:CRAIG DANIEL HORACE 权利人:GEN ELECTRIC 摘要:A process for the acid-catalyzed synthesis of polysiloxane emulsions is discussed. The process utilizes pre-existing polysiloxane emulsion seeds to yield polysiloxane emulsions comprising optionally multi-layered mono-modal particles.
专利号:US-2013211542-A1 优先权日:2012-02-08 标题:Synthesis of nanotopographic biomimetic membranes for tissue culture, engineering and prosthetics applications 发明人:MCKEE CLAYTON; MURPHY CHRISTOPHER J; RUSSELL PAUL; GARLAND SHAUN P 权利人:UNIV CALIFORNIA; UNIV CALIFORNIA 摘要:The present invention provide methods for preparing nanostructured membranes. The methods include: providing a substrate with a charged silanized surface; forming a multilayered membrane containing at least two polyelectrolytes; inducing polyelectrolyte phase separation; crosslinking the multilayered membrane; and covalently linking the multilayered membrane to the silanized surface. Methods for fabricating membrane replicas are also disclosed, as well as devices such as cell- and tissue-culture substrates that contain the membranes and membrane replicas. Resulting materials exhibit topographic features and compliance of the extracellular matrix in vivo.
专利号:US-8053548-B2 优先权日:2008-09-05 标 题 :Hydrophilic surface modification of polydimethylsiloxane 发明人:DHRUV HARSHIL; BRITT DAVID 权利人:UNIV UTAH STATE 摘要:A method for the preparation of hydrophilic elastomers involves the synthesis of polydimethylsiloxane with tunable hydrophilic surface properties. An elastomeric monolith with desired hydrophilic properties is produced by combining a polyethylene oxide polymeric surfactant additive with a PDMS base and curing agent during polymerization. The surfactant chain segment lengths are varied to control the hydrophobic/hydrophilic balance.
专利号:US-10020491-B2 优先权日:2013-04-16 标题:Silicon-based active materials for lithium ion batteries and synthesis with solution processing 发明人:HAN YONGBONG; MASARAPU CHARAN; DENG HAIXIA; ANGUCHAMY YOGESH KUMAR; VENKATACHALAM SUBRAMANIAN; LOPEZ HERMAN A 权利人:ENVIA SYSTEMS INC; ZENLABS ENERGY INC 摘要:Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.
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.