application of starch g anionic polyacrylamide of Hot Sale

application of starch g anionic polyacrylamide of Hot Sale
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  • How is amphoteric starch-graft-polyacrylamide (S-G-Pam) prepared?
  • An amphoteric starch-graft-polyacrylamide (S-g-PAM) was prepared by inverse emulsion polymerisation, subsequent hydrolysis reaction and Mannich reaction and evaluated for flocculation efficiency.
  • How is amphoteric starch-graft-polyacrylamide used in amination reaction?
  • In amination reaction, the amphoteric starch-graft-polyacrylamide with high amination degree and high viscosity was yielded through control of the material addition method and the reaction conditions. The stable emulsion of the amphoteric product could be used directly and there was no need for preparation of a powder.
  • Is starch a good substrate for copolymerisation?
  • Starch is found to be a very good substrate for copolymerisation with other monomers to develop products with properties suited for specific applications. Starch-graft-copolymers are synthesised by the grafting reaction of vinyl monomers onto starch by free radical initiated polymerisation reaction.
  • How to obtain stable emulsion of amphoteric starch-graft-polyacrylamide as flocculant?
  • 4. Conclusions A stable emulsion of amphoteric starch-graft-polyacrylamide as flocculant was obtained by inverse emulsion polymerization, hydrolysis reaction and Mannich reaction subsequently. In hydrolysis reaction, both NaOH and Na 2 CO 3 were common hydrolyzing agents.