a novel hydrophobically modified polyacrylamide at germany

a novel hydrophobically modified polyacrylamide at germany
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  • How are hydrophobically associating polyacrylamides synthesized?
  • Abstract A series of hydrophobically associating polyacrylamides modified by small amounts (< 3 mol%) of a self-associative cationic monomer 4-(2-(acryloyloxy) ethoxy) benzyl tri-ethyl ammonium bromide (AEBA) as hydrophobe were synthesized by radical copolymerization in aqueous solutions without external surfactants.
  • Is polyacrylamide hydrophobically associating by micellar copolymerization microblocky?
  • The hydrophobically associating polyacrylamide prepared by micellar copolymerization has microblocky structure; namely, the hydrophobic monomer is randomly distributed along the copolymer backbone in a microblocky manner[8, 9].
  • Are hydrophobically associating polyacrylamides soluble in water?
  • A major difficulty in synthesizing hydrophobically associating polyacrylamides is that hydrophobes are insoluble in water. The current solution is to adapt the micellar copolymerization technique and prepare the hydrophobically associating polyacrylamides using external conventional surfactants.
  • How do hydrophobic monomers bind with acrylamide?
  • In this system, hydrophobic monomers are solubilized within the micelles and copolymerized with acrylamide in the aqueous solution resulting in copolymers with a microblocky structure. A lot of work has focused on polymer structures, solution behaviors and thickening properties of hydrophobically associating polyacrylamides[8−14].