CAS: 1000-05-1; 1,1,3,3,5,5,7,7-Octamethyltetrasiloxane

该化合物是一种线性四硅氧烷化合物,其特点是粘度低,热稳定性高,分子结构与甲基替代成分交替形成硅氧-氧联系,具有极强的疏水性和化学惰性,该化合物通常用作硅酮合成的前体,高温应用中的润滑剂,或二电液体,因其挥发性低,耐氧化性强,与有机和无机基质的兼容性使其适合涂层和粘合.八甲基替代可增强水解的稳定性,而四硅氧的脊柱则确保制剂的灵活性.应用包括电子,航空航天以及热抗力和化学抗药性非常强的专用化学品.

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上下游产品

CAS号3277-26-7 1,1,3,3-四甲基二硅氧烷 | CAS号556-67-2 八甲基环四硅氧烷 | CAS号541-05-9 六甲基环三硅氧烷 | CAS号2474-02-4 1,7-二氯-1,1,3,3,... | CAS号1066-35-9 二甲基一氯硅烷 | CAS号1066-42-8 二甲基硅烷二醇 | CAS号15933-59-2 四甲基二硅氮烷 | CAS号109-99-9 四氢呋喃 | CAS号1111-74-6 二甲基硅烷 | CAS号541-05-9 六甲基环三硅氧烷 | CAS号1189-93-1 1,1,3,3,5,5-六甲基三硅氧烷

合成工艺路线路线简述

    📜1,7-二氯八甲基四硅氧烷置于四氢呋喃,+-体系中,化学反应 2.0H,反应生成1,1,3,3,5,5,7,7-八甲基四硅氧烷,1,7-Dibutyloxy-octamethyl-Tetrasiloxan
    参考文献:Knott,Wilfried,Zeitschrift Fur Naturforschung,B: Chemical Sciences,1997,Vol. 52,# 5,P. 629-634
    标题:Knott,Wilfried,Zeitschrift Fur Naturforschung,B: Chemical Sciences,1997,Vol. 52,# 5,P. 629-634

    专利信息


    专利号:US-7605218-B2
    优先权日:2004-02-03
    标题:Synthesis of elastomeric carborane-siloxanes by hydrosilation reactions
    发明人:KELLER TEDDY M; KOLEL-VEETIL MANOJ K
    权利人:US NAVY
    摘要:A carborane-siloxane compound is provided having the repeat unit n nQ contains any of —SiR 2 —, —SiR 2 —O—, —C≡C—C≡C—, carboranyl, and U′. Each R and R′ is alkyl, aryl, alkylaryl, haloalkyl, haloaryl, or mixtures thereof. Each U′ is derivable from hydrosilation of an alkenyl or alkynyl group. Each T is alkyl, aryl, alkylaryl, haloalkyl, haloaryl mixtures thereof, —(O—SiR′ 2 ) x H, or the repeat unit. Each x and x′ is a positive integer. The compounds may be made be reacting a carborane-siloxane precursor having unsaturated end groups with a siloxane crosslinker in the presence of a hydrosilation catalyst.

    专利号:US-7153921-B2
    优先权日:2004-02-03
    标 题 :Synthesis of elastomeric carborane-siloxanes by hydrosilation reactions
    发明人:KELLER TEDDY M; KOLEL-VEETIL MANOJ K
    权利人:US NAVY
    摘要:A crosslinked polymer and process of making it are disclosed. A copolymer having at least one alkyne group, carborane group, and alkylsiloxane group is reacted with a siloxane crosslinker in a hydrosilation reaction. This produces a crosslinked polymer where the crosslink sites are reacted alkyne groups.

    专利号:US-4816541-A
    优先权日:1986-11-03
    标 题:Method for the preparation of SiH-containing organopolysiloxanes
    发明人:KOERNER GOETZ; WEITEMEYER CHRISTIAN; WEWERS DIETMAR
    权利人:GOLDSCHMIDT AG TH
    摘要:A method is disclosed for the synthesis of SiH-containing organopolysiloxanes from the corresponding Si-halogen-containing organopolysiloxanes by the reaction with metal hydrides in a liquid reaction medium. The method has the following combiniation of characteristics: (a) the use of a metal hydride being LiH, NaH, KH, CaH2 or MgH2; (b) the use of ethers as reaction medium; (c) the continuous removal of the metal halide depositing on the surface of the metal hydride particles during the reaction by the action of mechanical energy or ultrasound with formation of a fresh surface. The reaction proceeds practically quantitatively and at low temperatures. It can be applied with particular advantage to industrially obtained mixtures of alpha , omega -dichloroorganopolysiloxanes.

    专利号:US-2021238374-A1
    优先权日:2020-02-04
    标 题 :Templated synthesis of nanovoided polymers
    发明人:YE SHENG; LANDIG RENATE EVA KLEMENTINE; DIEST KENNETH ALEXANDER; OUDERKIRK ANDREW JOHN; BOWMAN CHARLES ROBERT; BOWMAN ROBERT G; HENDRICKSON WILLIAM ARTHUR; RUEB CHRISTOPHER J; PURVIS II LAFE JOSEPH; SUN WENMO; LI RYAN; YAROSHCHUK OLEG; RAO TINGLING; BOROMAND ARMAN; ZHAO CHURNING; Khaleghimeybodi Morteza
    权利人:FACEBOOK TECH LLC
    摘要:A method of forming a voided polymer includes forming a polymerizable composition containing a polymer precursor and a solid templating agent, forming a coating of the polymerizable composition, processing the coating to form a cured polymer material having a solid phase in a plurality of defined regions, and removing at least a portion of the solid phase from the cured polymer material to form a voided polymer layer.

    专利号:US-9085692-B1
    优先权日:2014-02-25
    标题 :Synthesis of oligomeric divinyldialkylsilane containing compositions
    发明人:LASKOSKI MATTHEW; KELLER TEDDY M; SAAB ANDREW
    权利人:LASKOSKI MATTHEW; KELLER TEDDY M; SAAB ANDREW; US GOVERNMENT
    摘要:A method of: providing a solution of: a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; an excess of a dihydroxyaromatic compound; a base; and a solvent; heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer; and reacting the aromatic ether oligomer with a chlorodialkylvinylsilane to form one or more vinyl-terminated compounds having the formula below. The aromatic ether oligomer is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. Each R is an alkyl group, Ar 1 is a residue from the dichloroaromatic compound, Ar 2 is a residue from the dihydroxyaromatic compound, and n is a non-negative integer.

    专利号:US-2016355684-A1
    优先权日:2014-01-29
    标题:Anthraquinone dye used for a color filter of a lcd
    发明人:LI YANG; LIAO GUIHONG; REMY MATTHEW S; LIU JUELIN; REN HUA; SUN YANPING; HE CHAO; CAI YU; KRUPER JR WILLIAM J
    权利人:DOW GLOBAL TECHNOLOGIES LLC
    摘要:An anthraquinone compound which is suitable for forming a color filter used for a liquid crystal display device, a composition containing a resin and the anthraquinone compound, an article having a polymer layer containing the compound and a resin, a color filter containing the compound and a method for synthesis of an asymmetric anthraquinone compound are developed.

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    合成参考文献


    参考文献:10.1055/s-0037-1611789
    摘要:Stratakis M, Lykakis IN. Nanogold(0)-Catalyzed Addition of Heteroelement σ Linkages to Functional Groups. Synthesis. 2019 Apr 25;51(12):2435–54. doi: 10.1055/s-0037-1611789.
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