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231223s2005 xx ||||| 00| ||eng c |
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|a (NLM)15641814
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Sekulić, Jelena
|e verfasserin
|4 aut
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|a Selective pervaporation of water through a nonselective microporous titania membrane by a dynamically induced molecular sieving mechanism
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 28.07.2006
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|a Date Revised 11.01.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Pervaporation experiments were performed on microporous titania membranes using several binary liquids containing 2-20 wt % water. The membrane was nonselective in the separation of water from alcohols and p-dioxane but showed a remarkably high selectivity in the separation of water from ethylene glycol/water mixtures with < or =15 mol % water. The absence of selectivity under most conditions is explained by the large pore size (0.9 nm) of microporous titania. The high selectivity for water in the separation from ethylene glycol can be explained by the formation of a hydrogen-bonded network of ethylene glycol in the micropores, which blocks transport of ethylene glycol, while water can still permeate through. These networks are disrupted by water at higher concentrations, leading to full loss of membrane selectivity
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|a Letter
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|a ten Elshof, Johan E
|e verfasserin
|4 aut
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|a Blank, Dave H A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 2 vom: 18. Jan., Seite 508-10
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:21
|g year:2005
|g number:2
|g day:18
|g month:01
|g pages:508-10
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|a AR
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|d 21
|j 2005
|e 2
|b 18
|c 01
|h 508-10
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