6533b82efe1ef96bd1294474
RESEARCH PRODUCT
Solution properties of polyelectrolytes. III. Effect of sodium polystyrene sulfonate concentration on viscometric and size exclusion chromatographic behavior at different ionic strengths
Rosa GarcíaVicente SoriaConcepción AbadAgustín CamposLorenzo Bracosubject
Gel permeation chromatographyChromatographyAqueous solutionChemistryIonic strengthIntrinsic viscositySize-exclusion chromatographyGeneral EngineeringGeneral Materials ScienceElectrolyteSodium Polystyrene SulfonatePolyelectrolytedescription
The effect of sodium polystyrene sulfonate concentration on the shape of its molecules in aqueous solution at different NaNO3 ionic strengths has been analyzed by viscometry and size-exclusion chromatography (s.e.c). An equation has been developed which predicts the intrinsic viscosity, [η] p.cp.cs, at finite concentration of both polyion (cp) and electrolyte (cs). The experimental results obtained by both techniques can be accounted for in terms of the theory. Several factors involved in the elution mechanism have been considered and the variation of the slopes of s.e.c. calibration curves with cp and cs has been discussed in terms of polyion conformation changes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-01-01 | British Polymer Journal |