What is anionic polyacrylamide (Apam)?

Anionic polyacrylamide (APAM) is its negative charge, which makes it highly effective in a wide range of applications. Anionic polyacrylamide (APAM) is highly water-soluble, which means that it can be easily dissolved in water and other aqueous solutions. This makes it easy to use in various applications, such as in the treatment of wastewater.

How is anionic polyacrylamide synthesized?

Synthesis mechanism The anionic polyacrylamide was synthesized by copolymerizing AM and SAS monomers. The essence of copolymerization is the free radical reaction. Thus, this chain reaction can be divided into three distinct processes: initiation, propagation, and termination.

Which compound is used to treat sewage with cationic charged particles?

Anionic polyacrylamide (APAM), synthesized with anionic monomer and acrylamide (AM), is a macromolecular compound. It is applied to treat sewage with cationic charged particles because its anionic chemical groups have efficient charge neutralization ability and colloids destabilization ability , .

Why does Apam-t have a higher charge density than Pam-T?

When flocculant with opposite charges are added to wastewater, the positively charged hematite particles are neutralized, and the zeta potential is reduced to approach zero, then the particles collide under Brownian motion and form large flocs. APAM-T has stronger charge density due to its anionic microblocks compared with APAM and PAM.

What spectroscopy is used to identify anionic polyacrylamide flocculant?

The anionic polyacrylamide (APAM-T) flocculant was characterized by Fourier transform infrared spectroscopy (FTIR), 1 H nuclear magnetic resonance spectroscopy (1 H NMR), and scanning electron microscopy (SEM). Furthermore, the X-ray photoelectron spectroscopy (XPS) was conducted to measure the elemental composition.

What is the molecular weight of poly diallyl dimethyl ammonium chloride (PolyDADMAC)?

Moreover, template poly diallyl dimethyl ammonium chloride (polyDADMAC, analytical grade) was provided by Wuxi Lansen Chemical Co., Ltd. (Jiangsu, China) and its molecular weight was 10000.