Microwave Promoted Effect of Starch-g-Butyl Acrylate Sizing Copolymer Grafting

Grafted Copolymers of Starch-g-Butyl acrylate were prepared under conditions of micro-wave field and the normal heat resource, the ammonium peroxysulfate (APS) was used as initiator and the reagent was in sub-solid state. The structures of the grafted copolymers were characterized by FT-IR, and the copolymer graft ratio, molecular weight of grafted chain and grafting frequency were tested. The results showed that the micro-wave not only had heat effect but also had non-heat effect during Starch-g-Butyl acrylate copolymerization.