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Synthesis and characteration of starch grafted-{acrylamide-co-tributy 1-3-[(and 4-)vinylbenzyl]phosphonium chloride} copolymers

Liang Jia;Guo Zhengchao;Liu Wentao;Song Weiqiang;He Suqin;Zhu Chengshen;Structure and Properties Laboratory,School of Materials Science and Engineering,Zhengzhou University;School of Materials Science and Engineering,Henan University of Technology;  
A cationic polymer was synthesized by graft copolymerization of corn starch with acrylamide and tributyl-3-[(and 4-)vinylbenzyl]phosphonium chloride in aqueous solution,and ammonium persulfate-sodium bisulfate as initiator.The grafting ratio(G),grafting efficiency of monomers(E) and yield of starch copolymers(Y) were studied.The effects of the acrylamide concentration and monomer ratio on cationic degree(CD) and reaction efficiency(RE) were discussed.The results showed that the CD and G of the copolymers reached a maximum of 0.21 and 98%,respectively,when the ratio of acrylamide and tributyl-3-[(and 4-) vinylbenzyl]phosphonium chloride was 1.5.Furthermore,the copolymer was structurally characterized by FTIR,XRD and SEM.
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