Research Progress in Heat-resistant Modifiers for PVC

Research progress in heat-resistant modifiers for poly(vinyl chloride)(PVC) resins was reviewed.The main heat-resistant modifiers were discussed,including N-substituted maleimides copolymers and its derivatives,α-methyl styrene copolymer,styrene-maleic anhydride copolymer,heat-resistant engineering plastics,etc.Finally,an outlook for the future direction of research and development was given.