Verfahren zur Herstellung von modifizierten Polymeren und Copolymeren aus Methylmethacrylat

摘要

New process for the preparation of polymers or copolymers based on MMA modified by imidation, with the aid of amine, of the ester functional groups which they contain, this process consisting in producing the MMA-based polymer or copolymer by polymerisation in pearl form and being characterised in that the imidation is performed on the said PMMA pearls in suspension in a hydrophobic nonsolvent agent. The imidation reactor 1 is provided with stirring means 2, a conduit 3 for injecting amine and a conduit 4 for removing the suspension. The imidated pearls are taken via the conduit 7 into a vessel allowing the imidated pearls obtained to be dried and recovered.