hydrolyzed polyacrylamide grafted maize starch based in spain

hydrolyzed polyacrylamide grafted maize starch based in spain
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  • Does polyacrylamide grafting destroy crystalline structure of starches?
  • XRD detection showed that the crystalline structure of all starches was destroyed after grafting reactions. The thermal stability of the polyacrylamide grafted onto the starches increased by about 10 °C, which could be explained by the strong bonding between the grafted polymer chains and the starch matrices.
  • Can polymethacrylamide be grafted with starch?
  • Polymethacrylamide was successfully grafted with starch by simple polymerization technique. The grafting was found to be best at methacrylamide rich reaction system, 0.4 g APS and 90 °C with 3 h reaction time. The prepared copolymer was found to have improved thermal stability.
  • Which acid is used to treat poly(acrylamide) starch graft copolymer?
  • Poly (acrylamide)–starch graft copolymer was treated independently with sodium hydroxide and different acid solutions. The different acids include phosphoric, hydrochloric, and sulphuric acid.
  • Can acrylamide be grafted on corn starches?
  • Grafting acrylamide onto corn starches with different amylose contents to produce SAPs was used as a model system in this work. The weight loss measured by TGA at different temperature was used to analyze the grafting ratio in quantity. The thermal stability of the grafted groups and the starches after grafting were also investigated.