کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
639355 1456195 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of chiral selective membranes for electrodialysis separation of racemic mixture
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Preparation of chiral selective membranes for electrodialysis separation of racemic mixture
چکیده انگلیسی

Chiral selective cation-exchange membrane (CSCM) and chiral selective anion-exchange membrane (CSAM) were prepared by blending poly(vinyl alcohol) (PVA) as basic material, β-cyclodextrin (β-CD) as chiral selector, and ion-exchange materials. Chiral selective capacities of these membranes were evaluated by electrodialysis resolution experiment. Electrodialysis separation of dl-4-hydroxyphenylglycine (HPG) racemic mixture showed that the chiral selective membranes had resolution effect. In acid medium, d-HPG+ took the precedence over l-HPG+ in passing through the CSCM and the selectivity αd/l of two kinds of CSCM were 1.21 and 1.34, respectively. In base medium, l-HPG− took the precedence over d-HPG− in passing through the CSAM and the selectivity αd/l was 0.84.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 276, Issues 1–2, 1 May 2006, Pages 193–198
نویسندگان
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