| 摘要 |
Preparation of organopolysiloxanes (I) containing 2-440C fluorohydrocarbyl group(s), 12-400C hydrocarbyl group(s) and optionally 1-11C hydrocarbyl and/or chlorine, hydroxy and/or 1-8C alkoxy groups, comprises cohydrolysis of organosilanes (II), with 12-400C hydrocarbyl substituent(s), with fluorocarbyl-substituted organosilanes (III) containing fluorocarbon groups, in the presence of water. Preparation of organopolysiloxanes (I) with units of formula (IA), containing 2-440C fluorohydrocarbyl group(s), 12-400C hydrocarbyl group(s) and optionally 1-11C hydrocarbyl and/or chlorine, hydroxy and/or 1-8 C alkoxy groups, comprises the cohydrolysis of organosilanes of formula (II), including organosilane(s) with 12-400C hydrocarbyl substituent(s), with fluorocarbyl-substituted organosilanes of formula (III), containing fluorocarbon groups of the given formulae in the presence of water. AaRbR<5>pSiOXcO(4-a-b-c-p)/2 (IA) RdR<5>tSiY(4-d-t) (II) ARrX1-rSiY2 (III) R = monovalent, optionally substituted 1-11C hydrocarbyl; R<5> = monovalent, optionally substituted 12-400C hydrocarbyl; X = Cl or -OR<1>; R<1> = H, 1-8C alkyl (optionally with ether substituents) or a group of formula (IV): -R<2>((CH(CH3)CH2O)e(CH2CH2O)f((CH2)4O)gR<3>)y-1 (IV) R<2> = di-, tri- or tetravalent 2-30C hydrocarbon group, which may contain -O-, C(O)-O-, -C(O)-NR<3>-, -SO2NR<3> , -NR<3>-, -N= OR -S- group(s); y = valency of R<2>(i.e. 2, 3 or 4); R<3> = H or 1-40 C hydrocarbyl, optionally substituted by -C(O)-; e, f, g = 0-200; e+f+g = 1 or more; A = group of formula (V): R<4>(-CnF2n+1)x-1 (V) R<4> = a di-, tri- or tetravalent, optionally substituted 1-400C hydrocarbon group, optionally with O atom(s) in the chain; x = valency of R<4> (i.e. 2, 3 or 4); a, r = 0 or 1; b, c, p, d = 0, 1, 2 or 3; t = 1, 2 or 3 in at least one silane (II), otherwise 0; a+b+c+p = 3 or less, such that (I) contains at least one A group and at least one R<5> group per molecule; d+t = 1, 2 or 3; and Y = Cl or -OR<1>.
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