Unusual trend of increasing selectivity and decreasing flux with decreasing thickness in pervaporation separation of ethanol/water mixtures using sodium alignate blend membranes

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TY  - JOUR
  - Flynn. E. J.; Keane, D.; Holmes, J. D.; Morris, M. A.
  - 2012
  - April
  - Journal of Colloid and Interface Science
  - Unusual trend of increasing selectivity and decreasing flux with decreasing thickness in pervaporation separation of ethanol/water mixtures using sodium alignate blend membranes
  - Published
  - ()
  - 370
  - 176
  - 182
  - Pervaporation membranes were produced comprising a 4:1 sodium-alginate:poly(vinyl-alcohol) polymer blend selective layer with a plasticizing agent (glycerol). Membranes were supported on a poly(acrylonitrile) mesoporous support layer and non-woven fabric base. Pervaporation separation of ethanol/water mixtures was carefully followed as a function of film thickness and time. It was found, contrary to what might be expected from literature, that these films showed increased selectivity and decreased flux as film thickness was reduced. It is argued that the morphology and structure of the polymer blend changes with thickness and that these structural changes define the efficiency of the separation in these conditions.
  - http://www.journals.elsevier.com/journal-of-colloid-and-interface-science/
DA  - 2012/04
ER  - 
@article{V140460695,
   = {Flynn. E. J. and  Keane, D. and  Holmes, J. D. and  Morris, M. A.},
   = {2012},
   = {April},
   = {Journal of Colloid and Interface Science},
   = {Unusual trend of increasing selectivity and decreasing flux with decreasing thickness in pervaporation separation of ethanol/water mixtures using sodium alignate blend membranes},
   = {Published},
   = {()},
   = {370},
  pages = {176--182},
   = {{Pervaporation membranes were produced comprising a 4:1 sodium-alginate:poly(vinyl-alcohol) polymer blend selective layer with a plasticizing agent (glycerol). Membranes were supported on a poly(acrylonitrile) mesoporous support layer and non-woven fabric base. Pervaporation separation of ethanol/water mixtures was carefully followed as a function of film thickness and time. It was found, contrary to what might be expected from literature, that these films showed increased selectivity and decreased flux as film thickness was reduced. It is argued that the morphology and structure of the polymer blend changes with thickness and that these structural changes define the efficiency of the separation in these conditions.}},
   = {http://www.journals.elsevier.com/journal-of-colloid-and-interface-science/},
  source = {IRIS}
}
AUTHORSFlynn. E. J.; Keane, D.; Holmes, J. D.; Morris, M. A.
YEAR2012
MONTHApril
JOURNAL_CODEJournal of Colloid and Interface Science
TITLEUnusual trend of increasing selectivity and decreasing flux with decreasing thickness in pervaporation separation of ethanol/water mixtures using sodium alignate blend membranes
STATUSPublished
TIMES_CITED()
SEARCH_KEYWORD
VOLUME370
ISSUE
START_PAGE176
END_PAGE182
ABSTRACTPervaporation membranes were produced comprising a 4:1 sodium-alginate:poly(vinyl-alcohol) polymer blend selective layer with a plasticizing agent (glycerol). Membranes were supported on a poly(acrylonitrile) mesoporous support layer and non-woven fabric base. Pervaporation separation of ethanol/water mixtures was carefully followed as a function of film thickness and time. It was found, contrary to what might be expected from literature, that these films showed increased selectivity and decreased flux as film thickness was reduced. It is argued that the morphology and structure of the polymer blend changes with thickness and that these structural changes define the efficiency of the separation in these conditions.
PUBLISHER_LOCATION
ISBN_ISSN
EDITION
URLhttp://www.journals.elsevier.com/journal-of-colloid-and-interface-science/
DOI_LINK
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