| 摘要 |
Disclosed is a fluorine-containing oligomer comprising a copolymer of a fluoroalkyl alcohol (meth)acrylic acid derivative represented by the general formula:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒC n F 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c OCOCR = CH 2 €ƒ€ƒ€ƒ€ƒ€ƒ[1]
wherein R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, a is an integer of 1 to 4; b is an integer of 0 to 3; and c is an integer of 1 to 3; and a (meth)acrylic acid derivative represented by the general formula:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(CH 2= CRCO) m R'€ƒ€ƒ€ƒ€ƒ€ƒ[II]
wherein R is a hydrogen atom or a methyl group, m is 1, 2, or 3; and when m is 1, R' is OH group, NH 2 group that is unsubstituted or mono- or di-substituted with an alkyl group having 1 to 6 carbon atoms, or a monovalent group derived from an alkylene glycol or polyalkylene glycol group containing an alkylene group having 2 or 3 carbon atoms; when m is 2 or 3, R' is a divalent or trivalent organic group derived from a diol or triol. The copolymerization reaction is performed using a hydrocarbon-based peroxide or azo compound polymerization initiator. Also disclosed are nano-silica composite particles formed as a condensate of the fluorine-containing oligomer and an alkoxysilane with nano-silica particles. |
