Effect of residual solvent on physico-chemical properties of poly(phenylene isophtalamide) membrane

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Effect of residual solvent on physico-chemical properties of poly(phenylene isophtalamide) membrane

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Publication Article, peer reviewed scientific
Title Effect of residual solvent on physico-chemical properties of poly(phenylene isophtalamide) membrane
Author(s) Penkova, Anastasia ; Polotskaya, Galina ; Toikka, Alexander ; Kocherbitov, Vitaly
Date 2011
English abstract
The influence of a plasticizer in the form of the residual solvent dimethylacetamide on pervaporation and sorption properties of membranes based on poly(phenylene isophtalamide) (PA) was investigated. To analyze the influence of the plasticizer on membrane transport properties, pervaporation of binary water–ethyl acetate mixtures was studied. The method of sorption calorimetry was used to investigate water sorption properties of the studied membranes and PA powder. Moreover, to characterize the PA membranes, contact angle measurements and thermogravimetric analysis (TGA) were applied. It is shown that the presence of a residual organic solvent significantly changes the sorption and transport characteristics of the membranes. The residual organic solvent increases the amount of water absorbed by the polymer membrane. In pervaporation of water/ethyl acetate mixtures, the presence of the residual solvent dimethylacetamide makes the membrane more permeable but less selective for water separation.
DOI http://dx.doi.org/10.1080/07373937.2010.519840 (link to publisher's fulltext)
Publisher Taylor and Francis
Host/Issue Drying Technology;6
Volume 29
ISSN 1532-2300
Pages 633-641
Language eng (iso)
Subject(s) Residual Solvent
Sorption calorimetry
membrane transport
Poly(phenylene isophtalamide)
Pervaporation
Dimethylacetamide
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/12859 (link to this page)

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