GPC Of Poly(N-Vinylacetamide) on Silanized Porous Glass in DMF and DMF/LiBr
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in Journal of Liquid Chromatography
- Vol. 3 (5) , 623-636
- https://doi.org/10.1080/01483918008060178
Abstract
Samples of poly(N-vinylacetamide) were characterized by exclusion chromatography on silanized porous glass columns in DMF and DMF + 0.01M LiBr. Chromatograms obtained in pure DMF were very different in appearance from those observed using DMF + 0.01M LiBr. It is proposed that solutions of the polymer in the pure solvents form stable microcrystalline aggregates leading to the appearance of exclusion limit peaks for the higher MW samples. Strong ion-dipole interactions between the polymer and LiBr prevent the formation of such aggregates, resulting in more normal chromatographic behavior.Keywords
This publication has 13 references indexed in Scilit:
- Application of gel permeation chromatography to polyelectrolytes: Salt rejection mechanism and molecular‐weight distributionJournal of Polymer Science: Polymer Physics Edition, 1979
- Structure of Poly(1,4-benzamide) SolutionsMacromolecules, 1977
- Substrate–polymer interactions in liquid exclusion chromatography (GPC) in N,N‐dimethylformamideJournal of Polymer Science: Polymer Chemistry Edition, 1977
- Poly(vinylamine hydrochloride). Synthesis and utilization for the preparation of water-soluble polymeric dyesJournal of the American Chemical Society, 1976
- Gel permeation chromatography: universal calibration for rigid rod and random coil polymersPolymer, 1975
- Bulk Properties of Synthetic Polymer-Inorganic Salt Systems. II. Crystallization Kinetics of Salted Poly(caproamide)Macromolecules, 1974
- Chapter 9. Electrolyte solutions in dipolar aprotic solventsAnnual Reports on the Progress of Chemistry, Section A: Physical and Inorganic Chemistry, 1973
- Salt effect on gel permeation chromatography of partially charged polymersJournal of Applied Polymer Science, 1972
- Molecular weight distribution of polyacrylonitrile carrying pendant sulfonate groupsJournal of Polymer Science Part B: Polymer Letters, 1969
- Association of polyacrylonitrile prepared by low‐temperature, solution polymerization with an organometallic catalystJournal of Polymer Science Part A-2: Polymer Physics, 1967