کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
636299 | 1456122 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly gas permeable and microporous polybenzimidazole membrane by thermal rearrangement
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This manuscript reports, for the first time, a new synthesis route to prepare thermally rearranged microporous polybenzimidazole (TR-PBI) membranes, exhibiting exceptionally highly permeable characteristics to small gas molecules as well as excellent molecular sieving properties. Generally, common PBIs have very rigid, well-packed structures due to their strong intermolecular interactions, resulting in very low gas permeation properties which prevent PBIs from applying in gas separation. Here, we demonstrate new synthesis route to obtain highly permeable TR-PBI membranes having microporous characters (i.e., high fractional free volume), prepared by the alkaline hydrolysis of polypyrrolone followed by simple thermal treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 357, Issues 1â2, 15 July 2010, Pages 143-151
Journal: Journal of Membrane Science - Volume 357, Issues 1â2, 15 July 2010, Pages 143-151
نویسندگان
Sang Hoon Han, Jae Eun Lee, Kee-Jung Lee, Ho Bum Park, Young Moo Lee,