What is anionic polyacrylamide (Apam)?

1. Introduction Anionic polyacrylamide (APAM) is a kind of organic high-molecular polymer with high hydrophilicity and viscosity, which is easily dissolved in water [, , ].

What are the different types of anionic polyacrylamide synthesis technologies?

The paper lists six different kinds of anionic polyacrylamide synthesis technologies, including homopolymerization posthydrolysis process, homopolymerization cohydrolysis process, copolymerization approach, inverse emulsion polymerization, precipitation polymerization and radiation polymerization.

Does ultrasonication affect the degradation of polyacrylamide-based flocculants?

The effect of ultrasonication, screening and shearing on five polyacrylamide-based flocculants of similar molecular weight but different degrees of anionicity (DA) was studied through measurement of intrinsic viscosity ( [η]) and size exclusion chromatography (SEC) to investigate the influence of DA on the degradation of polymers.

Why are non ionic and anionic polyacrylamide based flocculant chains used in tailings treatment?

Non-ionic and anionic polyacrylamide (PAM)-based flocculant chains are commonly employed in a vast majority of tailings treatment operations and several studies have been conducted on degradation of PAMs due to various factors such as pH, light and temperature , microbial degradation and chemical degradation .

Can anionic polyacrylamide be used in water treatment?

What's more, the authors discussed the application status of anionic polyacrylamide in water treatment. Based on these reviews, future research perspectives relating to its synthesis and application were proposed. This review summarizes the synthesis methods for anionic polyacrylamide.

Does handling affect intrinsic viscosity of Pam samples?

Effect of handling on intrinsic viscosity of five PAM samples was studied. Polymer samples were of known molecular weight and degree of anionicity. Molecular weight of the samples was determined using size exclusion chromatography. Stability of polymers was empirically quantified using intrinsic viscosities.