A hydrophobically associating water-soluble viscosifier AOC, a graft copolymer of sodium carboxymethyl cellulose(NaCMC) with acrylamide(AM) and methacryloxyethyldimethyloctyl ammonium bromide (ADMOAB) was synthesized ...A hydrophobically associating water-soluble viscosifier AOC, a graft copolymer of sodium carboxymethyl cellulose(NaCMC) with acrylamide(AM) and methacryloxyethyldimethyloctyl ammonium bromide (ADMOAB) was synthesized using potassium persulfate and tetramethylethylene diamine as initiators. The composition of the copolymers were analyzed by elemental analysis, and the molecular weight was determined by gel permeation chromatography. Investigations of the viscosity of the copolymers in aqueous solution indicated that AOC has excellent synergistic viscosification properties in relation of salt, temperature and shear rate.展开更多
文摘A hydrophobically associating water-soluble viscosifier AOC, a graft copolymer of sodium carboxymethyl cellulose(NaCMC) with acrylamide(AM) and methacryloxyethyldimethyloctyl ammonium bromide (ADMOAB) was synthesized using potassium persulfate and tetramethylethylene diamine as initiators. The composition of the copolymers were analyzed by elemental analysis, and the molecular weight was determined by gel permeation chromatography. Investigations of the viscosity of the copolymers in aqueous solution indicated that AOC has excellent synergistic viscosification properties in relation of salt, temperature and shear rate.
