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Pulsed field gradient NMR studies of small molecule diffusion in amorphous microporous silicas

✍ Scribed by Cordula Krause; Stephan Klein; Prof. Jörg Kärger; Prof. Wilhelm F. Maier

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
591 KB
Volume
8
Category
Article
ISSN
0935-9648

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Transport in cellulose gels has been studied with ethylene glycol and crown ether (15-5) as "probes" using an NMR spin-echo technique. The cellulose content was varied in range 20-5570 (w/w). The retardation of diffusion was found to be adequately described by simple first-order expressions in conce