Selective sorption of latex membranes with ethanol-water mixtures

Journal Article · Tue Feb 01 00:00:00 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), Vol. 29:3; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

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