Patent ID: 6903182

Claim:
A process for polymerizing an acrylic monomer comprising contacting at least one acrylic monomer under polymerization conditions with a catalyst comprising Cu(I) complexed with one or more ligands comprising phosphorus containing rings of the formulae V or II wherein the phosphorus containing rings are optionally-substituted and are optionally members of a larger bicyclic or tricyclic ring system; each P atom is bonded to only three other atoms in the ligand; the two atoms in the ring adjacent to the P atom are C atoms; R 1 , R 2 , R 3 , and R 4 are independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl; R 5 and R 6 are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, Cl, Br, I, hydroxyl, alkoxy, thiol, alkylthio, amino, alkylamino, and dialkylamino; R 2 and R 3 together and R 5 and R 6 together can optionally form a ring; A is a divalent group of optionally-substituted chains of from 1 to 12 linear, branched, or cyclic carbons, optionally containing one or more heteroatoms or organometallic groups in the chain, and —N(R 7 )—N(R 8 )—; and R 7 and R 8 are independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl.