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本文测定了不同中和度聚丙烯酸在不同离子强度盐溶液中的特性粘数,研究了聚丙烯酸的分子形态及构象对聚合物浓度、电荷密度及溶液离子强度的依赖性,得到聚离子的构象变化与溶液盐浓度的对数成反比,与电荷密度的平方根成正比等规律。
In this paper, the intrinsic viscosity of polyacrylic acid with different neutralization degree in different ionic strength salt solutions was determined. The dependence of polyacrylic acid molecular morphology and conformation on the polymer concentration, charge density and solution ionic strength was studied. The conformation of polyion The change is logarithmically inversely proportional to the logarithm of the salt concentration of the solution and proportional to the square root of the charge density.