Process for stopping continuous polymerization

摘要

The present invention provides a process for stopping continuous polymerization in which a raw material monomer is polymerized in a reaction vessel by continuously feeding the raw material monomer and a polymerization initiator into the reaction vessel, which process comprises the steps of, in the midst of the polymerization reaction, stopping feeding of the polymerization initiator to the reaction vessel while continuing stirring in the reaction vessel; and adjusting the feed flow rate of the raw material monomer to the reaction vessel so that the temperature T 1 (°C) in the reaction vessel and the temperature T 2 (°C) of the external wall thereof satisfy a relation represented by the formula: T 2 - 20 ‰¤ T 1 ‰¤ T 2 + 20.