working principle of cationic polyacrylamide lcms of Azerbaijan

working principle of cationic polyacrylamide lcms of Azerbaijan
Tags: , , , , , , , , ,
  • What is cationic polyacrylamide (CPAM)?
  • Cationic polyacrylamide (cPAM), a linear water-soluble and high-molecular polymeric compound with cationic charges, can effectively enhance solid-liquid separation through charge neutralization and interparticle bridging and is widely used worldwide ( Campos et al., 2008; Dai et al., 2014).
  • How does temperature affect polyacrylamide cations?
  • The polymerization was slowed down, leading to excess monomer, and the molecular weight was reduced. Based on the response surface methodology in Figure 10 a,b,e,f, when the reaction temperature increased from 55 °C to 60 °C, the molecular weight of polyacrylamide cations increased rapidly, and reached its maximum at 60–62 °C.
  • 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.
  • Does cationic degree affect kinetics of RAFT dispersion polymerization?
  • In RAFT solution polymerization, the cationic degree did not a ect the kinetics, which was also found in RAFT dispersion polymerizations of AM. However, the charge density in mCTA had a signi cant e ect on phase separation since the positive charge of mCTA made the dispersion stable.