کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
636340 | 1456120 | 2010 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of TRIS-based co-monomer on structure and gas transport properties of cross-linked poly(ethylene oxide)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
3-[Tris-(trimethylsiloxy)silyl] propyl acrylate (TRIS-A) was copolymerized with poly(ethylene glycol) diacrylate (PEGDA), and the gas transport and physical properties of the resulting copolymers were characterized. Introduction of TRIS-A led to increased polymer fractional free volume and strong broadening of the glass-rubber relaxation without a significant shift in glass transition temperature in samples containing up to 80Â wt% TRIS-A. Gas permeability increased significantly as TRIS-A content increased: for instance, addition of 80Â wt% TRIS-A increased CO2 permeability from 110 to 800Â barrer. The strongly non-polar character of TRIS-A, however, resulted in progressively lower CO2 affinity for the polymer network, leading to decreased CO2/light gas selectivity with increasing TRIS-A content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 359, Issues 1â2, 1 September 2010, Pages 25-36
Journal: Journal of Membrane Science - Volume 359, Issues 1â2, 1 September 2010, Pages 25-36
نویسندگان
Victor A. Kusuma, Benny D. Freeman, Stephan L. Smith, Alexander L. Heilman, Douglass S. Kalika,