Patent ID: 6677422
Filing Date: 2004-01-13
Classification: C08F

Abstract:
A method of making a copolymer composition containing alternating donor-acceptor segments comprising the steps of:(a) providing a donor monomer composition comprising one or more monomers having the following structure (I): wherein R1 is linear or branched C1 to C4 alkyl and R2 is selected from the group consisting of methyl, linear, cyclic or branched C1 to C20 alkyl, alkenyl, aryl, alkaryl and aralkyl;(b) mixing the donor monomer composition with an ethylenically unsaturated monomer composition comprising one or more ethylenically unsaturated acceptor monomers, forming a total monomer composition substantially free of maleate type monomers and fumarate type monomers; and (c) polymerizing the mixture resulting from step (b)in the presence of a free radical polymerization initiator in the substantial absence of Lewis acids and transition metals; wherein the monomer of structure (I) is present at a molar excess based on the molar concentration of monomers in the ethylenically unsaturated monomer composition; and the ethylenically unsaturated acceptor monomers are present in an amount of at least 15 mol % of the total monomer composition.