RT info:eu-repo/semantics/article
T1 Thin-Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation
A1 Radmanesh, Farzaneh
A1 Sudholter, Ernst J.R.
A1 Elshof, Maria G.
A1 Benes, Nieck E.
AB An interfacial polymerization process is introduced for the fabrication ofthermally stable cyclomatrix poly(phenoxy)phosphazenes thin-film com-posite membranes that can sieve hydrogen from hot gas mixtures. Byreplacing the conventionally used aqueous phase with dimethyl sulfoxide/potassium hydroxide, a variety of biphenol molecules are deprotonated toaryloxide anions that react with hexachlorocyclotriphosphazene dissolvedin cyclohexane to form a thin film of a highly cross-linked polymer film. Thefilm membranes have persistent permselectivities for hydrogen over nitrogen(16–27) and methane (14–30) while maintaining hydrogen permeances in theorder of (10−8–10−7 mol m−2s−1Pa−1) at temperatures as high as 260 °C anddo not lose their performance after exposure to 450 °C. The unprecedentedthermal stability of these polymer membranes opens the potential for indus-trial membrane gas separations at elevated temperatures.
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/72884
UL https://uvadoc.uva.es/handle/10324/72884
LA eng
NO Adv. Mater. Interfaces 2023, 10, 2202077
NO Producción Científica
DS UVaDOC
RD 22-dic-2024