## Abstract The separation of aqueous alcohol mixtures was carried out by use of a series of novel aromatic polyamide membranes. The aromatic polyamides were prepared by the direct polycondensation of 2,2β²βdimethylβ4,4β²βbis(aminophenoxyl)biphenyl (DBAPB) with various aromatic diacids, such as terep
Permselectivities of aromatic polyamide membranes for aqueous alcohol mixtures in pervaporation
β Scribed by Yueh-Hua Wang; Kueir-Rarn Lee; Der-Jang Liaw; Juin-Yih Lai
- Publisher
- Springer
- Year
- 1998
- Tongue
- English
- Weight
- 370 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1022-9760
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π SIMILAR VOLUMES
Pervaporation of ethanol/water mixtures through symmetric dense aromatic polyamide membranes was investigated. The membrane structure was controlled by varying the solvent evaporation time before gelation. The membranes were water-selective and the selectivity increased with an increase in the solve
The permeation behaviors of permeants were investigated in the pervaporation of a homologous series of alcohol aqueous mixtures through a hydrophilic poly(vinyl alcohol) (PVA). The PVA membrane was crosslinked with glutaraldehyde. A homologous series of alcohols used in this study were methanol, eth