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Research on structure of starch graft polyacrylamide

Lei Li, Guanghua Wang

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Abstract

The fast-solving and powder starch graft polyacrylamide(St-g-PAM) with special viscosity(3.29 mPa·s) was prepared by emulsion polymerization,using span-60 as emulsifier,and the structures of St-g-PAM,soluble starch and polyacrylamide(PAM) were analysed through IR,SEM,DTA,XRD.The results showed that the structure of St-g-PAM was meshy,and porous,and integrant linetype,the soluble starch had elliptic form,and PAM was linear color;the crystallinity of St-g-Pam had been improved,and was better than PAM;the thermal stability of St-g-PAM was also better than PAM,which was the significant reason that the graft polymer had the ability of excellent flocculation.The dissolution time of the graft polymer was 6.0 min,that was close to the PAM's(dissolution time was 5.5 min).

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What this paper is about

The fast-solving and powder starch graft polyacrylamide(St-g-PAM) with special viscosity(3.29 mPa·s) was prepared by emulsion polymerization,using span-60 as emulsifier,and the structures of St-g-PAM,soluble starch and polyacrylamide(PAM) were analysed through IR,SEM,DTA,XRD.The results showed that the structure of St-g-PAM was meshy,and porous,and integrant linetype,the soluble starch had elliptic form,and PAM was linear color;the crystallinity of St-g-Pam had been improved,and was better than PAM;the thermal stability of St-g-PAM was also better than PAM,which was the significant reason that the graft polymer had the ability of excellent flocculation.The dissolution time of the graft polymer was 6.0 min,that was close to the PAM's(dissolution time was 5.5 min).

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Available abstract

The fast-solving and powder starch graft polyacrylamide(St-g-PAM) with special viscosity(3.29 mPa·s) was prepared by emulsion polymerization,using span-60 as emulsifier,and the structures of St-g-PAM,soluble starch and polyacrylamide(PAM) were analysed through IR,SEM,DTA,XRD.The results showed that the structure of St-g-PAM was meshy,and porous,and integrant linetype,the soluble starch had elliptic form,and PAM was linear color;the crystallinity of St-g-Pam had been improved,and was better than PAM;the thermal stability of St-g-PAM was also better than PAM,which was the significant reason that the graft polymer had the ability of excellent flocculation.The dissolution time of the graft polymer was 6.0 min,that was close to the PAM's(dissolution time was 5.5 min).

Key concepts: Polyacrylamide, Starch, Dissolution, Flocculation, Polymer, Crystallinity, Thermal stability, Chemical engineering

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