METHOD FOR PRODUCING VINYL CHLORIDE-BASED POLYMER AND VINYL CHLORIDE-BASED POLYMER PRODUCED THEREBY

摘要

The present invention relates to a method for producing a vinyl chloride-based polymer having superb thermal stability due to supression of heat- or ultraviolet light-induced dehydrochlorination, and a vinyl chloride-based polymer produced by means of the method. The production method according to the present invention controls when a modifier is added so that a vinyl chloride-based polymer can be produced in which the occurrence of scales is low and heat- or ultraviolet light-induced dehydrochlorination is notably suppressed. Therefore, the method for producing a vinyl chloride-based polymer by means of emulsion polymerization according to the present invention and a vinyl chloride-based polymer produced by means of the method can be easily utilized in an industry needing vinyl chloride-based polymers, such as industries associated with vinyl chloride-based resins and molded products.