Novel linear and branched poly(1,4-ketone)-b-polyalcohol block structures through control of the catalyst initiation mechanism [2]

The linear and branched poly(1,4-ketone)-b-polyalcohol block structures through control of the catalyst initiation mechanism was investigated. The ethylene glycol monomethyl ether (Me-EG) initiator was incorporated into each chain by a covalent ester linkage. The PCO block copolymers were prepared using polymeric initiators containing hydroxyl end and side groups. The block copolymers gave homogeneous films due to the different relative block lengths. Molecular weight and molecular weight distributions were measured by gel permeation chromatography (GPC) in dichloromethane relative to polystyrene standards or in hexa fluoro-2-propanol relative to poly(methyl methacrylate) standards.