Abstract

100 years after the birth of polymer science, it can be stated that viscometry of dilute polymer solutions is the most popular method among molecular hydrodynamics methods, the purpose of which is to obtain the molecular characteristics of individual polymer chains. The viscous flow of dilute aqueous solutions of polyelectrolytes–statistical copolymers of N-methyl-N-vinylacetamide and N-methyl-N-vinylamine hydrochloride was investigated in the range of ionic strengths from the minimum (10^–6 M) to the maximum possible 6 M NaCl. Intrinsic viscosities were determined as ∂lnη_r/∂c at c → 0. The obtained generalized dependence of the intrinsic viscosity on the ionic strength of the solution in a double logarithmic scale is sigmoidal. The intrinsic viscosity values change insignificantly in the range 10^–6–10^–4 M. The nature of the change in the hydrodynamic volume of charged macromolecules in the entire range of ionic strengths of solutions is discussed in comparison with the theory of single polyelectrolyte macromolecule in the salt solution developed by Vasilevskaya et al., [26].

中文翻译：

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通过稀释溶液的粘度测定在整个离子强度范围内监测聚电解质柔性链的尺寸

摘要

高分子科学诞生 100 年后，可以说稀聚合物溶液的粘度测定法是分子流体力学方法中最流行的方法，其目的是获得单个聚合物链的分子特征。的聚电解质-统计共聚物的稀水溶液的粘性流动Ñ甲基Ñ -vinylacetamide和Ñ甲基Ñ -vinylamine盐酸盐离子强度的范围内进行了研究从最小（10 ^-6 M）至最大可能6 M 氯化钠。特性粘度确定为 ∂lnη _r /∂ c at c→ 0. 在双对数标度中，所获得的特性粘度对溶液离子强度的广义依赖性是 sigmoidal。特性粘度值在 10 ^–6 –10 ^–4 M范围内变化不大。与单一聚电解质大分子理论相比，讨论了在溶液的整个离子强度范围内带电大分子的流体力学体积变化的性质在 Vasilevskaya 等人开发的盐溶液中，[26]。