Continuous anionic polymerisation of styrene monomers

摘要

A process for the continuous production of styrene polymers (I) by anionic polymerisation in the presence of an alkali metal alkyl as initiator is claimed. The polymerisation is carried out continuously under non-isothermal conditions and without back mixing in the presence of a bivalent or higher metal alkyl or aryl (II) to full conversion. The reactor outlet temperature is kept below 300 deg C.