Patent ID: 8841473

Claim:
A method of synthesis of fluorosilicone copolymers of an arbitrary topology and general formula 1a wherein x=0-100, y=1-50, z=0-50, R 1 , R 2 , R 3 and R 4 can be the same or different and stand for an alkyl group containing C=1-12 or aryl group V is an alkyl group containing C=1-12, an aryl group or any organic functional group not reacting with an epoxy group, A stands for a group of formula 3 wherein n=1-12, m=1-4, Z stands for a divalent group either the method comprising a reaction of a nucleophilic opening of an oxirane ring in epoxyfunctional co-polysiloxanes of an arbitrary topology and general formula 6 wherein R 1 , R 2 , R 3 , R 4 , V, x, y and z have the meaning specified above and Q is the glycidyloxypropyl group of formula 7 or a 2-(3,4-epoxycyclohexyl)ethyl group of formula 8, using fluorinated alcohols of general formula 9 HO(CH 2 ) m (CF 2 ) n CF 2 H (9) wherein n and m have the meaning specified above, in an acidic medium of a pH ranging from 1 to 4.5.