Ionic strength-dependent changes in tentacular ion exchangers with variable ligand density. I. Structural properties

• Published in: Journal of Chromatography A Vol. 1463; pp. 90 - 101
• Main Authors: Bhambure, Rahul, Gillespie, Christopher M., Phillips, Michael, Graalfs, Heiner, Lenhoff, Abraham M.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 09.09.2016
• Subjects: Adsorption; Cation Exchange Resins - chemistry; Cation-exchange chromatography (CEX); Chromatography, Gel; Inverse size-exclusion chromatography (ISEC); Ligand density; Ligands; Microscopy, Electron, Scanning; Osmolar Concentration; Porosity; Salt exclusion; Scanning electron microscopy (SEM); Scattering, Small Angle; Small-angle x-ray scattering (SAXS); X-Ray Diffraction; Small-angle x-ray scattering (SAXS); Inverse size-exclusion chromatography (ISEC); Salt exclusion; Cation-exchange chromatography (CEX); Scanning electron microscopy (SEM); Ligand density

•Ligand density can appreciably affect the structure and properties of ion exchangers.•Effects of ligand density on structure of tentacular resins were investigated.•Increasing ligand density was found to result in pore constriction.•SAXS measurements indicate the presence of ionomers (ion clusters)...