title: NMR investigation of gaseous SF6 confinement into EPDM rubber.
abstract: The confinement process of gaseous sulphurhexafluoride (SF6) in ethylene-propylene-diene (EPDM) rubber was investigated by spectroscopic and spatially resolved NMR techniques. A strong elongation of T1 relaxation time of SF6 and a decrease of the diffusion coefficient were found. A possible explanation may be the strong restriction of molecular mobility due to interactions between SF6 and active centers of the EPDM.
authors.affiliation: Institut für Technische Thermodynamik und Kältetechnik, Universität Karlsruhe (TH), 76128 Karlsruhe, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Neutzler
authors.forename: Maxim
authors.initials: M
authors.lastname: Terekhov
authors.forename: Dieter
authors.initials: D
authors.lastname: Hoepfel
authors.forename: Lothar Rainer
authors.initials: LR
authors.lastname: Oellrich
mesh_terms: D004058:Diffusion; D005740:Gases; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D016062:Porosity; D012408:Rubber / Q000737:chemistry; D013459:Sulfur Hexafluoride / Q000737:chemistry*
chemical_list: D005740:Gases; D012408:Rubber; D013459:Sulfur Hexafluoride