polyacrylamide thermal stability supplier from Brazil

polyacrylamide thermal stability supplier from Brazil
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  • What is thermal stability of water soluble polyacrylamide (PAM) and partially hydrolyzed polymers?
  • Thermal stability of water-soluble polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) polymers under various solution conditions have been studied utilizing Quantum Mechanics Density Functional Theory (DFT) computational modeling method.
  • Do polyacrylamide-type polymers have good thermal stability?
  • Polyacrylamide-type polymers with good thermal stability present good long-term stability at high temperature and high salinity conditions. Viscosity reduction of polyacrylamide-type polymers with good thermal stability was owing to polymer main chain degradation at harsh conditions.
  • How does temperature affect the stability of commercial polyacrylamide solutions?
  • The above reported data show that temperature affects the stability of commercial polyacrylamide solutions in two different ways: hydrolysis process of amide groups,which is pH and temperature dependent. molecular weight degradation process which is strngly dependent on the presence of both oxygen and residual impurities.
  • How to predict long-term stability of polyacrylamide-type polymer under high temperature and salinity?
  • A facile model was developed by TGA method for long-term stability prediction of polyacrylamide-type polymer under high temperature and high salinity conditions. Polyacrylamide-type polymers with good thermal stability present good long-term stability at high temperature and high salinity conditions.