S-(Alpha, Alpha'-Disubstituted-Alpha"-Acetic Acid) - Substituted Dithiocarbonate Derivatives For Controlled Radical Polymerizations, Process and Polymers Made Therefrom

A composition, comprising:

• a dithiocarbamate polymer or copolymer having the formula:
• wherein each R12 and R13, independently, is the same or different, is optionally substituted, and is a linear or branched alkyl having from 1 to about 12 carbon atoms;
• or an aryl group having from 6 to about 18 carbon atoms, optionally containing heteroatoms;
• or R12 and R13 can form and be part of a substituted or unsubstituted cyclic ring having from 3 to about 12 carbon atoms;
• wherein R15 and R16, independently, is the same or different, optionally substituted, optionally contains heteroatoms, and is hydrogen;
• or a linear or branched alkyl having from 1 to about 18 carbons;
• or an aryl group having from 6 to about 18 carbon atoms, optionally saturated or unsaturated;
• or an arylalkyl having from 7 to about 18 carbons;
• or an alkenealkyl having from 3 to about 18 carbon atoms;
• or derived from polyalkylene glycol ether;
• or derived from an amine;
• or R15 and R16 are in the form of a substituted or unsubstituted cyclic ring with the nitrogen atom having a total of 4 to about 12 carbon atoms;
• wherein T is a divalent radical having a nitrogen atom directly connected to each carbon atom of the two thiocarbonyl groups;
• wherein said polymer repeat units are derived from at least one conjugated diene monomer, or a vinyl containing monomer, or combinations thereof, with the proviso that each repeat unit can be the same or different;
• and
• wherein the number of said repeat units f, independently, is from 1 to about 10,000.