Study of polydimethylsiloxane/aromatic polyamide laminated membranes for separation of acetic acid/water mixtures by pervaporation process

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399408005626· OSTI ID:7102377

Deng, S; Sourirajan, S; Matsuura, T ^[1]

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1. Univ. of Ottawa (Canada)

Separation of acetic acid/water mixtures by pervaporation was attempted over a range of compositions using polydimethylsiloxane (PDMS), aromatic polyamide (PA), and laminated polydimethylsiloxane-aromatic polyamide membranes. PDMS membranes are hydrophobic and acetic acid selective, whereas PA membranes are hydrophilic and water selective. When PDMS and PA membranes were laminated, with PDMS on the top side and in contact with the feed, water selectivity of the bottom PA membrane was intensified. On the other hand, when the PA membrane was on the top side and in contact with the feed, the selectivity was lowered. 10 refs., 4 figs.

• OSTI ID: 7102377
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 29:9; 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
ACETIC ACID
AROMATICS
CARBOXYLIC ACIDS
EVAPORATION
HYDROGEN COMPOUNDS
MEMBRANES
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
OXYGEN COMPOUNDS
PERMEABILITY
PHASE TRANSFORMATIONS
POLYAMIDES
POLYMERS
SILOXANES
USES
WATER