Can polyacrylamide aqueous dispersion be soluble after polymerization?

However, after polymerization, the resulting copolymer should not be soluble in the dispersion medium. The first non-ionic monomer used in aqueous media was acrylamide, which can be copolymerized with anionic and cationic monomers to produce an ionic polyacrylamide aqueous dispersion system .

What is aqueous dispersion polymerization (ADP)?

Aqueous dispersion polymerization (ADP) is a method of polymerization based on the mechanism of free radical polymerization. It involves dissolving monomers, initiators and dispersing agents in a dispersion medium to form a clear and transparent homogeneous solution.

What is polyacrylamide used for?

Polyacrylamide (PAM) is a collective term for polymers obtained by the homopolymerization or copolymerization of acrylamide monomers under the action of an initiator. It can be used as a coagulant, retention aid, sludge dewatering agent, and flocculant sedimentation agent, among other uses, and has a wide range of applications.

What aqueous solution polymerization is used to make amphoteric polyacrylamide?

By 2010, aqueous solution polymerization, reversed-phase emulsion polymerization and reversed-phase suspension polymerization were the domestic and international techniques used to manufacture amphoteric polyacrylamide . However, products from aqueous solution polymerization have issues with high viscosity and cross-linking.

What is dispersion polymerization?

Dong et al . were the first to use dispersion polymerization technology to prepare a hydrophobic association polyacrylamide derivative with good water solubility and a relative molecular mass reaching over a million using monomers such as acrylamide.

What is polyacrylamide (PAM) used for?

In raw water treatment, polyacrylamide (PAM) is used together with activated carbon for the coagulation and clarification of suspended particles in domestic water; in sewage treatment, polyacrylamide (PAM) can be used for sludge dewatering; in industrial water treatment, polyacrylamide (PAM) is primarily used as a formula agent.