Effect of inorganic salts on viscosities of dimethyl sulphoxide(DMSO)solutions of acrylonitrile(AN)/ N vinylpyrrolidone( N VP) copolymer was discussed Viscosity was determined by revolving viscosimeter It was shown th...Effect of inorganic salts on viscosities of dimethyl sulphoxide(DMSO)solutions of acrylonitrile(AN)/ N vinylpyrrolidone( N VP) copolymer was discussed Viscosity was determined by revolving viscosimeter It was shown that solution viscosity decreased quickly with addition of KCl and NaCl and the effect of NaCl was more prominent than KCl As the concentration of KCl and NaCl beyond 0 025 mol·L -1 , the viscosity tended to increase The viscosity increased considerably with addition of FeCl 3 and CuCl 2 The change of solution viscosity became less obvious with addition of ZnCl 2 With increasing temperature, the viscosity of copolymer solution containing NaCl decreased most quickly and the copolymer solution containing FeCl 3 decreased most展开更多
文摘Effect of inorganic salts on viscosities of dimethyl sulphoxide(DMSO)solutions of acrylonitrile(AN)/ N vinylpyrrolidone( N VP) copolymer was discussed Viscosity was determined by revolving viscosimeter It was shown that solution viscosity decreased quickly with addition of KCl and NaCl and the effect of NaCl was more prominent than KCl As the concentration of KCl and NaCl beyond 0 025 mol·L -1 , the viscosity tended to increase The viscosity increased considerably with addition of FeCl 3 and CuCl 2 The change of solution viscosity became less obvious with addition of ZnCl 2 With increasing temperature, the viscosity of copolymer solution containing NaCl decreased most quickly and the copolymer solution containing FeCl 3 decreased most
