کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
639627 | 1456194 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and characterization of polyimide–zeolite L mixed matrix membranes for gas separations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fabrication and characterization of polyimide–zeolite L mixed matrix membranes for gas separations Fabrication and characterization of polyimide–zeolite L mixed matrix membranes for gas separations](/preview/png/639627.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 277, Issues 1–2, 1 June 2006, Pages 195–202
Journal: Journal of Membrane Science - Volume 277, Issues 1–2, 1 June 2006, Pages 195–202
نویسندگان
Todd W. Pechar, Sangil Kim, Ben Vaughan, Eva Marand, Michael Tsapatsis, Hae Kwon Jeong, Chris J. Cornelius,