Does salinity affect adsorption behavior of hydrophobically modified polyacrylamide?

A hydrophobically modified polyacrylamide was compared with a polyacrylamide. Adsorption behaviors and interaction forces on different surfaces were investigated. The salinity played a critical role in the adsorption of polymers on substrates. Interaction forces and conformation changes could affect the adsorption behavior. 1. Introduction

What is hydrophobically modified associating polyacrylamide (hapam)?

Hydrophobically modified associating polyacrylamide (HAPAM) synthesized by micellar copolymerization at high monomer concentration Eur. Polym. J., 43 ( 3) ( 2007), pp. 824 – 834 Adsorption of hydrophobically modified polyacrylamide P (AM-NaAA-C 16 DMAAC) on model coal and clay surfaces and the effect on selective flocculation of fine coal Miner.

Does hydrophobically modified polyacrylamide p (am-NAAA-C 16 DMAAC) affect selective flocculation?

Adsorption of hydrophobically modified polyacrylamide P (AM-NaAA-C 16 DMAAC) on model coal and clay surfaces and the effect on selective flocculation of fine coal Miner. Eng., 142 ( 2019), p. 105887

What is the hydrophobically modified polyacrylamide?

The hydrophobically modified polyacrylamide (hereinafter referred as P (AM-NaAA-C 16DMAAC)) was synthesized by free radical polymerization of acrylamide (AM), acrylic acid (AA), and hexadecyl dimethyl allyl ammonium chloride (C16DMAAC) in aqueous media.

Does NaCl improve adsorption of hydrophobically modified polyacrylamide on kaolin particles?

By determining the adsorption isotherms and the flocculation behaviors, Ren et al. found that the adsorption amount and flocculation efficiency of hydrophobically modified polyacrylamide on kaolin particles were improved with the addition of 1 mol/L NaCl ( Ren et al., 2008 ).

Do hydrophobic monomers affect adsorption on silica surfaces?

The adsorbed amount on silica surfaces decreased with the increasing molar ratio of hydrophobic monomers in HMPAM, while the thickness of adsorbed layer became enlarged due to the significant self-assembly polymers induced by the hydrophobic interaction between hydrophobic monomers ( Samoshina et al., 2003 ).