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Citation: Chen Jiushun, Wang Yin. RELATIONSHIP BETWEEN INTRINSIC VISCOSITY, DEGREE OF HYDROLYSIS OF PAM, HPAM AND ADDED SALT CONCENTRATION[J]. Chinese Journal of Applied Chemistry, ;1986, 3(2): 74-76. shu

RELATIONSHIP BETWEEN INTRINSIC VISCOSITY, DEGREE OF HYDROLYSIS OF PAM, HPAM AND ADDED SALT CONCENTRATION

Chen Jiushun ¹ ,
Wang Yin ²

1.
1. Department of Chemistry, Heilongjiang University;
2.
2. Heilongjiang Province Institute of Petrochemistry

Received Date: 11 February 1985
Available Online: 27 May 1985

Polyacrylamide (PAM) and its hydrolysed product (HPAM) were studied viscosimetrically in aqueous solution of 1, 0.5, 0, 1, 0.025 and 0.01N NaNO₃. A linear relationship between tga (see Fig. 1) and degree of hydrolysis (DH%) was found with the same concentration of added salt (C_s) and the same molecular weight of polymers. It was also found that the intrinsic viscosity[η] of PAM and HPAM is proportional to the C₃^-1/2. The same[η]_∞values of samples were obtained when the polymer has the same initial molecular weight, but different DH%.
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