Patent ID: 9006383
Filing Date: 2015-04-14
Classification: C08G

Abstract:
1. A process for producing a copolymer of a diallylamine and sulfur dioxide, which comprises copolymerizing a monomer mixture consisting of a diallylamine of the following general formula (I), wherein each of R and sulfur dioxide in the presence of a polymerization accelerator which is at least one acid selected from the group consisting of hydrochloric acid, hydrobromic acid, hydroiodic acid, hydrofluoric acid, chlorosulfuric acid, fluorosulfuric acid, amidosulfuric acid, sulfuric acid, phosphoric acid, perchloric acid, methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, trifluoroacetic acid, trichloroacetic acid, hydroxyacetic acid and glycolic acid in an amount of 4 to 48 mol % based on the total molar amount of all monomers and a radical polymerization initiator in a polar solvent.