low molecular weight phpa/low molecular weight phpa in france

low molecular weight phpa/low molecular weight phpa in france
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  • What is low molecular weight PHPA, specifically?
  • Low molecular weight PHPA is a linear copolymer of acrylate (anionic) and acrylamide (nonionic) monomers, also known as partially-hydrolyzed polyacrylamide (PHPA).
  • What is the molecular weight of PHPA vs PEI polymers?
  • The polymers had molecular weights that varied from 5 to 10 × 10 6 g/mol for PHPAs with initial hydrolysis degrees between 6 and 20 mol%, while the molecular weights of the PEI were between 2 and 67 × 10 4 g/mol with a constant branching degree of 57–59.
  • What is a low molecular weight polymer?
  • Low molecular weight polymers, purchased from Sigma Aldrich, namely Polyacrylamide (PAM) in a powder form (100% purity), polyacrylic acid (PAA) (35 wt% purity) and very low Mw PEI (PEI2) (50% purity) both in liquid form were employed to investigate the crosslinking mechanisms between the higher molecular weight PHPA and PEI.
  • Is PHPA a water soluble polymer?
  • PHPA is a water-soluble polymer. Interactions between the polymer molecules increase the viscosity of the drilling mud proportionally to the molecular weight of the product. PHPA can be used in fresh water, sea water or NaCl and KCl systems. PHPA is not compatible with high divalent contents in the water and high temperature applications.