Patent ID: 6747111
Filing Date: 2004-06-08
Classification: C07C,C07D,C08F

Abstract:
A process for producing a polymer, said process comprising polymerizing a monomer mix into said polymer in the presence of a source of free radicals and a chain transfer agent having a transfer constant in the range of from 0.1 to 5000, said monomer mix comprising (meth)acrylates, styrene and said chain transfer agent having the following formula: wherein when D is D2 of the following formula: then p is in the range of from 1 to 200, E is E1 and said transfer agent is of the following formula: where in all of the above:R is a p-valent moiety derived from a moiety selected from the group consisting of substituted or unsubstituted alkane, substituted or unsubstituted alkene, substituted or unsubstituted arene, unsaturated or aromatic carbocyclic ring, unsaturated or saturated heterocyclic ring, an organometallic species, and a polymer chain, R. being a free radical leaving group resulting from R that initiates free radical polymerization; and E1 is: