کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
634041 | 1456053 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The influence of polymer purity and molecular weight on the synthesis of integrally skinned polysulfone membranes
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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: The influence of polymer purity and molecular weight on the synthesis of integrally skinned polysulfone membranes The influence of polymer purity and molecular weight on the synthesis of integrally skinned polysulfone membranes](/preview/png/634041.png)
چکیده انگلیسی
Polysulfones (PSf) from 10 different origins were chosen to prepare solvent resistant nanofiltration (SRNF) membranes by the non-solvent induced phase separation method via immersion precipitation. Besides synthesis of membranes with only one type of PSf, polymer blends were also synthesized. The effects of PSf molecular weight (MW), purity and polydispersity (PDI) on the structure and performance of the prepared asymmetric membranes were investigated by means of scanning electron microscopy (SEM) and SRNF experiments, the latter obtained by measuring Rose Bengal (RB) rejections from iso-propanol (IPA) solutions. Polymers were characterized by gel permeation chromatography (GPC), nuclear magnetic resonance (NMR) and thermogravimetric analysis (TGA) and the polymer casting solutions by viscosity and cloudpoint measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 446, 1 November 2013, Pages 113-120
Journal: Journal of Membrane Science - Volume 446, 1 November 2013, Pages 113-120
نویسندگان
Agnieszka K. HoÅda, Marjan De Roeck, Katrien Hendrix, Ivo F.J. Vankelecom,