کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
628691 | 1455492 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modified poly(phenylene oxide) membranes in ultrafiltration and micellar-enhanced ultrafiltration of organic compounds
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
Poly(phenylene oxide) (PPO) membranes with sulfonic groups were prepared by two methods: plasma-initiated surface grafting of sodium styrenesulfonate or chemical sulfonation (with chlorosulfonic acid) of PPO, followed by membrane preparation from the modified material. The presence of ionic groups greatly increased the surface polarity of the material and the flux of water through the membranes. It seemed, however, not to improve the protein filtration process. Coating of these membranes with allylamine plasma polymer resulted in amphoteric membranes much better for ultrafiltration than those made of unmodified PPO. Such bipolar membranes appeared to be also very effective in micellar-enhanced ultrafiltration of mixtures of the 2,4-D herbicide and hexadecyltrimethylammonium bromide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 198, Issues 1â3, 30 October 2006, Pages 215-224
Journal: Desalination - Volume 198, Issues 1â3, 30 October 2006, Pages 215-224
نویسندگان
Gryzelda Poźniak, Irena Gancarz, WÅodzimierz Tylus,