the effect of electric charge density of polyacrylamide (pam)

the effect of electric charge density of polyacrylamide (pam)
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  • What is the charge density of poly(acrylamides) (PAMS)?
  • Poly (acrylamides) (PAMs) with various anionic and cationic charge densities from −1.64 to +0.98 meq/g but similar molecular weights were synthesized through radical polymerization.
  • What is the charge density of a Pam solution at pH 7?
  • All PAM solutions were transparent, and PAM molecules in the aqueous 0.05 % PAM solutions at pH 7 had electric charge densities from −1.64 to +0.98 meq/g. The aqueous 0.05 % TOCN dispersion used in this study had, on the other hand, a charge density of −0.98 meq/g.
  • Are cationic polyacrylamides better than anionic polyamides?
  • They suggested that cationic polyacrylamides (PAM) produced floc aggregates with larger size, greater shear-resistant ability and higher regrowth capacity than anionic one, arising from the contribution of charge neutralization and bridging effects , , .
  • How do PAM molecules form polyelectrolyte complexes?
  • In particular, PAM molecules with electric charge densities with +0.54 and +0.98 meq/g formed polyelectrolyte complexes with anionic TOCN elements, resulting in formation of large agglomerates in the aqueous mixtures.