Size-exclusion liquid chromatography of poly(N-vinylformamide)s in aqueous solutions

被引：0
|
作者：
V. D. Krasikov
N. I. Gorshkov
I. I. Malakhova
O. S. Egorova
Yu. V. Pokhvoshchev
机构：
[1] Russian Academy of Sciences,Institute of Macromolecular Compounds
来源：
Journal of Analytical Chemistry | 2017年 / 72卷
关键词：
size-exclusion chromatography; velocity sedimentation; polyelectrolytes; poly(; -vinylamide)s; hydrodynamic sizes; intrinsic viscosity; molecular-weight characteristics;
D O I：
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中图分类号：
学科分类号：
摘要：
The exclusion mechanism of the separation of poly(N-vinylformamide) and its derivatives with a cysteamine terminal group in gel permeation chromatography implemented by the suppression of polyelectrolyte swelling and the electroexclusion of macromolecules was established by the transport analytical methods of molecular hydrodynamics (HPLC, velocity sedimentation, and intrinsic viscosity). Based on an analysis of the hydrodynamic characteristics and molecular weights of polymer fractions determined by velocity sedimentation, it was found that the molecular characteristics and polydispersity of the water-soluble poly(N-vinylamide) s of aliphatic carboxylic acids and their derivatives can be calculated with the use of the Benoit universal calibration dependence.
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页码：460 / 467
页数：7
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