title: A practical tutorial to set up NMR diffusometry equipment: application to liquid crystals.
abstract: NMR diffusometry is nowadays a well-established and powerful technique to investigate molecular translation in fluid materials. Standard NMR diffusometry approaches are based on pulsed field gradients generated by specific hardware and specially designed NMR probes. Here, we present an alternative set-up that exploits the static gradient present in the fringe field of any commercial superconducting magnet. This stray field diffusometry technique can be particularly useful to study diffusional processes in fast-relaxing and slow-diffusing systems, such as thermotropic liquid crystals, ionic liquids and polymer melts.
authors.affiliation: Dipartimento di Chimica e Chimica Industriale, via Risorgimento 35, 56126, Pisa, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Cifelli
keywords: CT-STE; STE; STRAFI; diffusometry; fringe field; liquid crystals; polymer melts