Selective sorption of latex membranes with ethanol-water mixtures

Journal Article · Mon Jan 31 23:00:00 EST 1994 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399408002485· OSTI ID:7302641

Wei, Y; Huang, R Y.M. ^[1]

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1. Univ. of Waterloo, Ontario (Canada)

Latex membranes have recently found use in pervaporation separation. The sorption of water-ethanol mixtures to latex membranes was carried out on three types of latex membranes, poly(acrylonitrile-co-butyl acrylate) [P(AN-BuA)], poly(methyl methacrylate-co-butyl acrylate) [P(MMA-BuA)], and poly(styrene-co-butyl acrylate) [P(ST-BuA)], which were prepared in our laboratory by direct casting of polymer latexes synthesized by emulsion polymerization. These latex membranes all exhibit preferential sorption and permeation toward water. Both water and ethanol sorption to the latex membranes exhibited nonideal sorption, with water sorption being enhanced greatly by the presence of ethanol. It was shown that the solubility parameter theory did not give correct predictions for the preferential sorption of latex membranes. Better results were obtained by using the Flory-Huggins interaction parameter. 12 refs., 4 figs., 2 tabs.

• OSTI ID: 7302641
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 29:3; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
400201 -- Chemical & Physicochemical Properties
ALCOHOLS
ALKYL RADICALS
BUTYL RADICALS
CHEMICAL REACTIONS
COLLOIDS
COMPILED DATA
COPOLYMERS
DATA
DISPERSIONS
ELASTOMERS
EMULSIONS
ESTERS
ETHANOL
FORECASTING
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
LATEX
MATERIALS
MATHEMATICAL MODELS
MEMBRANES
MIXTURES
NITRILES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PERMEABILITY
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PMMA
POLYACRYLATES
POLYMERIZATION
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
RADICALS
RUBBERS
SEPARATION PROCESSES
SOLUBILITY
SORPTION
SURFACE PROPERTIES
SYNTHESIS
SYNTHETIC MATERIALS
WATER