title: Size-exclusion chromatographic NMR of polymer mixtures.
abstract: The use of chromatographic stationary phases or solvent modifiers to modulate diffusion properties in NMR experiments is now well established. Their use can be to improve resolution in the diffusion domain or to provide an insight into analyte-modifier interactions and, hence, the chromatography process. Here, we extend previous work using size-exclusion chromatographic stationary phases to the investigation of polymer mixtures. We demonstrate that similar diffusion modulation behaviour is observed with a size-exclusion chromatographic stationary phase that can be understood in terms of size-exclusion behaviour.
authors.affiliation: School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QJ, UK.
authors.forename: Guillermo
authors.initials: G
authors.lastname: Lucena Alcalde
authors.forename: Rebecca E
authors.initials: RE
authors.lastname: Joyce
authors.forename: Iain J
authors.initials: IJ
authors.lastname: Day
mesh_terms: D004058:Diffusion; D009682:Magnetic Resonance Spectroscopy; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011108:Polymers
keywords: 1H; NMR; chromatographic NMR; diffusion NMR; polymer