Fabrication and characterization of polyimidezeolite L mixed matrix membranes for gas separations

abstract

• Mixed matrix membranes composed of zeolite L dispersed in a 6FDA-6FpDA-DABA polyimide matrix were fabricated and characterized for gas separation performance. The interfacial contact between the two phases relied on introducing amine functional groups on the zeolite surface and covalently linking them with carboxylic acid groups present along the polyimide backbone. While certain gas permeabilities in the membranes increased with the addition of zeolite L, overall these mixed matrix membranes did not offer substantial selectivity improvements. Separate gravimetric sorption measurements indicated that the sorption capacity of zeolites modified with silane coupling agents is substantially lower than the gas sorption in unmodified zeolites. 2005 Elsevier B.V. All rights reserved.

authors

• Jeong, Hae-Kwon

published proceedings

• Journal of Membrane Science

author list (cited authors)

• Pechar, T. W., Kim, S., Vaughan, B., Marand, E., Tsapatsis, M., Jeong, H. K., & Cornelius, C. J.

citation count

• 181

complete list of authors

• Pechar, Todd W||Kim, Sangil||Vaughan, Ben||Marand, Eva||Tsapatsis, Michael||Jeong, Hae Kwon||Cornelius, Chris J

publication date

• January 2006

publisher

• Elsevier  Publisher

published in

• Journal of Membrane Science  Journal

Digital Object Identifier (DOI)

• 10.1016/j.memsci.2005.10.029

start page

• 195

end page

• 202

volume

• 277

issue

• 1-2

URL

• http://dx.doi.org/10.1016/j.memsci.2005.10.029