A New Method of Polymer Molecular Weight Determination Based on the Permeable Sphere Model
A New Method of Polymer Molecular Weight Determination Based on the Permeable Sphere Model
复制标题
基于渗透球模型的聚合物分子量测定新方法
DOI：
10.1295/polymj.18.783
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发表时间：
1986
期刊：
影响因子：
2.8
通讯作者：
L. Gmachowski
中科院分区：
文献类型：
--
作者：
L. Gmachowski
It is shown that the concentration dependence of the coils-solvent permeability coefficient, experimentally determined over a wide range, may be well described by corrected Brinkman’s model for the fluid flow relative to a swarm of permeable spheres of uniform permeability. A method of checking model reliability is developed. A new method of polymer molecular weight determination is elaborated on the basis of this model. According to this method, molecular weight may be calculated from the function describing concentration dependence of permeability coefficient in a semidilute regime along with a permeability coefficient value in dilute solution.
