Polymers containing pendent thiuram disulphide functional groups, their manufacture and their application to the manufacture of graft copolymers

摘要

These polymers consist of a chain sequence of units: it being possible for this chain sequence to comprise, randomly distributed, other units originating from at least one vinyl monomer, R1 = H; allyl, cycloalkyl or aryl optionally substituted by at least one halogen; alkyl, cycloalkyl or aryl); A = single bond; alkylene, cycloalkylene or arylene; or (B = alkylene, cycloalkylene or arylene); R2, R3 and R4 = alkyl, cycloalkyl or aryl; it being possible for at least one of R3 and R4 to denote a polyoxyethylene or polyester block. These polymers are used as a base for the preparation of graft copolymers containing units of formula: where Po = vinyl or dienic polymer block, and other vinyl units. These graft copolymers are useful especially as compatibilising agents.