title: Methods for correlating T1rho and FID components in wideline 1H NMR studies of motionally heterogeneous polymer systems.
abstract: We address the problem of correlating the observed FID and T1rho components in wideline 1H relaxation measurements of motionally heterogeneous polymers, and show that different methods of data treatment can highlight different aspects of the correlations present. For a sample of polypropylene we find that the T1rho relaxation behaviour is driven by relaxation associated with the intermediate FID component, which strongly suggests a motionally inhomogeneous amorphous region in the sample.
authors.affiliation: IRC in Polymer Science and Technology and Department of Chemistry, University of Durham, UK.
authors.forename: M
authors.initials: M
authors.lastname: Geppi
authors.forename: A M
authors.initials: AM
authors.lastname: Kenwright
authors.forename: B J
authors.initials: BJ
authors.lastname: Say
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D011126:Polypropylenes
chemical_list: D011126:Polypropylenes