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Study on polybenzoxazinone membrane in pervaporation processes
Author(s) -
Pulyalina Alexandra,
Polotskaya Galina,
Goikhman Mikhail,
Podeshvo Irina,
Kalyuzhnaya Ludmila,
Chislov Mikhail,
Toikka Alexander
Publication year - 2013
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39674
Subject(s) - pervaporation , membrane , sorption , thermogravimetric analysis , chemical engineering , desorption , swelling , dehydration , chemistry , polymer , polymer chemistry , materials science , organic chemistry , permeation , adsorption , biochemistry , engineering
Poly(benz‐3,1‐oxazinone‐4) was prepared by thermal cyclization of its hydrolytically stable precursor polyamic acid. Both polymer and its precursor were investigated as membrane materials. Thermogravimetric analysis and contact angle measurements were carried out for characterization of peculiarity of membrane compositions and analysis of membrane surface. Pervaporation of water–isopropanol mixture was studied in the wide range of feed composition. To interpret the pervaporation transport properties of the membranes, swelling experiments were performed, kinetic curves of sorption and desorption were plotted, and basic sorption and diffusion parameters were analyzed. It was established that poly(benz‐3,1‐oxazinone‐4) membrane is extremely effective in dehydration of water–isopropanol mixture and shows high separation factor. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 4024–4031, 2013