Cationic Temperature-Resistant Salt-Resistant Polyacrylamide for Thickener Durable

Chitosan is a cationic polymer and has been widely used in the areas of food, cosmetics, biomedical and pharmaceutical applications, , due to its biocompatibility and other favorable properties. Multiparticulate systems of alginate and chitosan containing triamcinolone were prepared by a complex coacervation/ionotropic …

For high brines conditions in fracturing, SINOFLOC team synthesized the anti-temperature and salt-resistant fracturing fluid thickener with acrylamide monomer and AMPS and by using free copolymerization of an aqueous solution. The optimum conditions of synthesis were determined by lab experiments. The …

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Polyacrylamide hydrogel (PAH) is an extensively cross-linked polymeric soft tissue filler substance, that has been used in the Ukraine, Russia, and China for the past 15–20 years (Christensen et al., 2003; Christensen and Breiting, 2006 ). It was originally introduced to aesthetic surgery under the name of Royamid in the …

PAM for short, the structural formula is [-CH2-CH(CONH2)] N -, the molecular weight between 4-20 million. Polyacrylamide mainly has two kinds of commodity forms, one is the appearance of white or slightly yellow powder, soluble in water, the speed is very slow, increase the temperature can slightly promote …

Cationic polyacrylamide (CPAM), a water-soluble cationic polymer decorated with carbamoyl group, is a commonly used retention and drainage agent in papermaking industry (Asselman and Garnier, 2000 ...