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Journal Article | PreJuSER-58777 |
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2008
Hüthig
Heidelberg
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Please use a persistent id in citations: http://hdl.handle.net/2128/3146
Abstract: A new design for an in-situ combination of NMR and rheological measurements is presented. The NMR instrumentation is based on a Bruker Minispec spectrometer with a home-built magnet system consisting of 64 permanent magnets in a so-called MANDHALA arrangement. This magnet reaches a flux density of about 0.23 T, corresponding to a H-1 NMR resonance frequency of about 9.5 MHz. The NMR apparatus is combined with a Scarabaeus SISV50 instrument with modified sample cells to allow synchronous in-situ rheological and NMR measurements. This unique instrument and first exemplary measurements of a curing epoxy resin and the vulcanization of a rubber sample are presented.
Keyword(s): J ; rheology (auto) ; curing (auto) ; cross-linking (auto) ; molecular mobility (auto) ; permanent magnets (auto) ; rubber (auto) ; NMR (auto)
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