Patent ID: 9587062
Date: 2017-03-07
CPC Classifications: C08F

Claim:
1. A method of forming a macroinitiator polymer by a single electron transfer living radical polymerization comprising the steps of: a) providing a reaction mixture comprising a plurality of vinyl monomers, a polymerizable photoinitiator, a halogen terminated initiator, and a ligand in a solvent; b) purging the reaction mixture with nitrogen; and c) adding to the reaction mixture a solid copper hydrazine-activated catalyst and polymerizing the reaction mixture by single electron transfer living radical polymerization in the presence of the catalyst under a positive pressure of nitrogen to produce a macroinitiator polymer including a photoinitiator polymerized therein, the macroinitiator having a molecular weight of from 55,000 to 75,000 grams/mole, a polydispersity index of 1.2 to 1.8, and a glass transition temperature of less than 20° C.