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本文用快速动态渗透压法和恒定外加盐浓度稀释法测定了丙烯酸和丙烯腈共聚物溶液的渗透压和特性粘数,提出在25°.10.02℃下在分别含有0.03N;0.066N,0.13N和0.24N NaNO_3的DMF中,AA-AN的分子量和特性粘度经验表达式为: [μ]_(0.03N)=1.390×10~(-3)M~(0.610) [μ]_(0.066N)=1.455×10~(-3)M~(0.602) [μ]_(0.12N)=2.04×10~(-3)M~(0.557) [μ]_(0.24N)=3.077×10~(-3)M~(0.519) 并对盐浓度和温度对第二维里系数的影响进行了讨论。
In this paper, the rapid dynamic osmotic pressure and constant addition of salt concentration dilution method was measured acrylic acid and acrylonitrile copolymer solution osmotic pressure and intrinsic viscosity, proposed at 25 ° .10.02 ℃ in respectively containing 0.03N; 0.066N, 0.13N And 0.24N NaNO_3 in DMF, the empirical formula of molecular weight and intrinsic viscosity of AA-AN is: [μ] _ (0.03N) = 1.390 × 10 ~ (-3) M ~ (0.610) [μ] ) = 1.455 × 10 -3 M ~ 0.602 μ × 0.12N = 2.04 × 10 -3 M ~ 0.557 μ × 0.24N = 3.077 × 10 ~ (-3) M ~ (0.519) and the effects of salt concentration and temperature on the second virial coefficient were discussed.