Transport of Small Molecules through Polyphenylene Oxide Membranes Modified by Fullerene

Autor:	Z. Pientka, Galina Polotskaya, Alexander Toikka, Miroslav Bleha, L. Brozova, Anastasia V. Penkova
Rok vydání:	2007
Předmět:	Fullerene Chemistry Process Chemistry and Technology General Chemical Engineering Oxide Ethyl acetate Filtration and Separation Sorption General Chemistry Permeation chemistry.chemical_compound Membrane Chemical engineering Organic chemistry Pervaporation Gas separation
Zdroj:	Separation Science and Technology. 42:333-347
ISSN:	1520-5754 0149-6395
Popis:	Homogeneous membranes based on fullerene‐polyphenylene oxide compositions containing up to 2 wt% fullerene C60 were prepared. The effect of fullerene addition on PPO transport properties was studied in gas separation and pervaporation processes. Permeability coefficients of H2, O2, N2, CH4, and CO2 were measured; a correlation between gas transport properties and membrane free volume was established. Pervaporation properties were studied for the system with ethyl acetate synthesis reaction: quaternary system ethanol—acetic acid—water—ethyl acetate and some constituent binary and ternary mixtures. Pervaporation in binary systems, ethanol–water and ethyl acetate–water was considered with the use of the data on sorption capacities and interaction parameters. In pervaporation of a quaternary reacting mixture, the permeate containing essentially ethyl acetate was obtained. Results show that membranes with fullerene additives exhibit improved transport properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3875df9671d210f980e46d9f39087a09 https://doi.org/10.1080/01496390600997963 Zobrazit plný text záznamu