Patent ID: 6699527
Filing Date: 2004-03-02
Classification: C07C,C08J,D06P

Abstract:
A process for the surface functionalisation of a polymeric substrate, which process comprises:(a) contacting the substrate with a diarylcarbene precursor; â€ƒwherein R is Ar1 or (CH2)mN(R1)(R2), Ar1 is wherein Y is C1 to C4 alkoxy or N(R3)(R4), â€ƒR3 and R4, which may be the same or different, are C1 to C4 alkyl, n is an integer of 0 to 3, R1 is C1 to C4 alkyl, R2 is phenyl, m is an integer of 1 to 4 and X is N2, (b) generating a carbene reactive intermediate from the diarylcarbene precursor so that it reacts with the substrate to functionalise the surface to form an activated substrate, and (c) further functionalizing the activated substrate obtained in step (b).