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摘要
The radical copolymerization of acrylamide (AM), sodium styrene sulfonate (SSS), n-vinylpyrrolidone (NVP) or acryloylmorpholine (ACMO) in water initiated with 2, 2'-azobis (2-methylpropionamide) dihydrochloride (V50) was carried out to produce a series of bipolymer P (AM-SSS) and terpolymer P (AM-SSS-NVP) /P (AM-SSS-ACMO).The structure of the acrylamide copolymer was determined by infrared (IR) and1H NMR.The molecular weight of copolymer was also determined.Influence of synthesis condition like monomer ratio and initiator dosage on viscosities of products was studied.The viscosities and dissolution times of different products in high salinity water (total dissolved solid=111 903 mg/L) were determined.For bipolymer P (AM-SSS), the highest viscosity would be reached after 10 min of dissolution.The viscosity of P (AM-SSS) can keep a value of 2.48 m Pa·s after being sheared at a shear rate of 170 s-1for1 h in high salinity water at 140℃.The resistance reducing ability of P (AM-SSS) was determined using a straight tube with a length of 2 m and a diameter of 10 mm in the laboratory.The resistance reduction rate can reach 59％～67％at a mass percentage of 0.1％.
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单位化学化工学院; 重庆科技学院
