low molecular weight polyacrylamide/low molecular in china

low molecular weight polyacrylamide/low molecular in china
Tags: , , , , , , , , ,
  • Which amide group is hydrolyzed in polyacrylamide?
  • The functional amide group in polyacrylamide is hydrolyzed at 80–90°C [ 4 ]. The polymer solution must be stable in harsh conditions of salinity and temperature. Acrylamide-based polymers suffer from some deficiencies such as their rapid hydrolysis, facile thermal degradation, and undesirable properties.
  • Is polyacrylamide a phosphate depressant?
  • Polyacrylamide (PAM) containing both hydroxyl and carboxyl functional groups, obtained by reaction with aldehydes and ketones, and several related PAM-based copolymers, which have not been studied in the past, were found to be very selective phosphate depressants in the amine flotation of silica.
  • What is copper-catalyzed controlled polymerization of acrylamide?
  • Copper-catalyzed controlled polymerization of acrylamide (AM) has always been a challenge, which typically exhibits low monomer conversion and broad molecular weight distribution (MWD) or requires complex/multistep reaction procedures, due to the highly active nature of the AM radical and its side reactions.
  • Is acrylamide a hydrophilic or nonionic monomer?
  • Acrylamide (AM) is a hydrophilic and nonionic monomer and has high rate constant for polymerization in water. 2-Acrylamido-2-methyl-1-propane sulfonic acid (AMPS) as the anionic monomer has high reactivity and good hydrolytic stability due to the geminal dimethyl groups and ionization even at low pH values.