NOVEL BLOCK COPOLYMERS AND A NOVEL METHOD FOR PREPARING (CO)POLYMERS HAVING A NARROW MOLECULAR WEIGHT DISTRIBUTION BY METAL-FREE ANIONIC POLYMERISATION IN THE PRESENCE OF A PHOSPHONIUM CATION

摘要

The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerisation in the presence of a phosphonium cation. The present invention also concerns block copolymers and methods of making the same using anionic polymerisation in the presence of a phosphonium cation to prepare at least one block of the copolymer.