Patent ID: 6930147
Filing Date: 2005-08-16
Classification: C08F

Abstract:
1. A curable composition which comprises a vinyl polymer having a silanol group at one or more termini thereof prepared according to a process comprising: (1) synthesizing a vinyl polymer by living radical polymerization, (2) subjecting a compound having at least two low-polymerizable alkenyl groups to reaction as a second monomer at the final stage of said polymerization or after completion of the reaction involving a predetermined monomer(s) to thereby sythesize a vinyl polymer having an alkenyl group at one or more one termini thereof, (3) carrying out the hydrosilylation reaction of said vinyl polymer having an alkenyl group at one or more one termini thereof with a silicon compound having both a silicon atom-bound hydrolyzable group and a hydrosilyl group, and (4) converting said hydrolyzable group to a silanol group by hydrolysis, or a process comprising the steps of: (1) synthesizing a vinyl polymer having a halogen atom at one or more one termini thereof by atom transfer radical polymerization, (2) reacting said vinyl polymer having a halogen atom at one or more one termini thereof with an alkenyl-containing oxyanion represented by the general formula (9) or an alkenyl-containing carboxylate anion represented by the general formula (10) to thereby substitute said alkenyl group for said halogen atom: wherein R wherein R (3) carrying out the hydrosilylation reaction of a vinyl polymer having an alkenyl group at one or more one termini thereof obtained above reaction (2) with a silicon compound having both a silicon atom-bound hydrolyzable group and a hydrosilyl group, and (4) converting said hydrolyzable group to a silanol group by hydrolysis, and which further comprises a silicon compound having two or more silicon atom-bound hydrolyzable groups.