کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
638037 | 1456160 | 2008 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of ester group on the performance of zwitterionic imidazolium compounds as membrane materials for separating alkene/alkane mixtures Effect of ester group on the performance of zwitterionic imidazolium compounds as membrane materials for separating alkene/alkane mixtures](/preview/png/638037.png)
Zwitterionic imidazolium compounds containing a propylsulfonate group and an ester group at 1- or 2-position were prepared and used as the membrane materials for separating ethylene/ethane and propylene/propane mixtures. The performance of the membranes consisting of a silver salt and a zwitterionic imidazolium compound bearing an ester group was significantly affected by the location of the ester group on the imidazolium ring. The investigation of the interaction between a zwitterionic imidazolium compound and AgNO3 using the density functional theory method and FT-IR study shows that the silver ion bonded to propylsulfonate group interacts intra-molecularly with the ester group only when both ester and propylsulfonate groups are located on the same side of the imidazolium ring.
Journal: Journal of Membrane Science - Volume 313, Issues 1–2, 10 April 2008, Pages 344–352