Aryl-nitration of poly(phenylene oxide) and polysulfone

Autor: Kanchan Ghosal, R. T. Chern
Rok vydání: 1992
Předmět:
Zdroj: Journal of Membrane Science. 72:91-97
ISSN: 0376-7388
DOI: 10.1016/0376-7388(92)80058-r
Popis: The gas permeability and permselectivity of unmodified and aryl nitrated poly(phenylene oxide) and polysulfone are reported for CO 2 , CH 4 , O 2 and N 2 . Aryl nitration decreases the permeability for all the gases, but increases the permselectivity of both polymers for either O 2 /N 2 or CO 2 /CH 4 gas pair. These results are related to changes in packing density, torsional mobility and interchain attractions due to the polar nitro group.
Databáze: OpenAIRE