Patent ID: 7259217

Claim:
A non-linear polymer comprising repeat units having the formula: where R 4 is H or an alkyl group; and R 5 and R 6 , independently, are selected from the group consisting of hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaxyl, alkoxy, aryloxy, and combinations thereof; and n is 10 or more; and wherein the polymer includes at least a fragment of a material having the formula wherein Core is a core molecule, S is sulfur, Z is selected front the group consisting of amino and alkoxy, each of R 1 , R 2 and R 3 are the same or different straight chain, branched or cyclic substituted or unsubstituted alkyl groups, X is a moiety that is capable of destabilizing a free radical, d is 2 or more, m ranges from about 2 to about 100, and z is 1 or more.