A controlled free-radical polymerization process for forming end-functionalized polymers is disclosed, particularly by degenerative iodine transfer. The end-functionalized polymers are characterized by a polydispersity less than 2.5 and a predetermined molecular weight. The end-functionalized polymers are useful as reactive intermediates in condensation polymerization, chain polymerization and heterogeneous polymerization reactions.
A polyacrylate-polycarbonate copolymer comprises a polycarbonate block comprising aromatic carbonate units, and a polyacrylate block derived from a difunctional polyacrylate polymer having the formula Z.sup.1-(M).sub.x-Z.sup.2 wherein M is an acrylate block unit comprising a reaction residue of a (meth)acrylate monomer, a non-(meth)acrylate monomer, or a combination comprising a (meth)acrylate and a non-(meth)acrylate monomer, at least one acrylate block unit is a (meth)acrylate monomer; x is greater than one; and Z.sup.1 and Z.sup.2 are each independently functionalized terminal groups of the formula -(A.sup.3).sub.y-B, wherein B is a reactive group comprising a hydroxy or non-hydroxy group, A.sup.3 an aliphatic group, an aromatic group, or an aliphatic-aromatic group, y is 0 or 1, A.sup.3 is free of hydrogen atoms beta to B when B is a hydroxy group, and B and A.sup.3 are each free of sulfur atoms. A method of making, a thermoplastic composition, and articles are also disclosed.
