کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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193532 | 459772 | 2007 | 7 صفحه PDF | دانلود رایگان |

A novel method of modification of cation exchange membrane for improved permselectivity is reported in this paper. Acrylic acid grafted fluorinated ethylene propylene copolymer membrane after sulphonation (FEP-g-AA-SO3H) was used as the cation exchange membrane for modification. Polyaniline is deposited electrochemically on to the membrane. The deposition of polyaniline starts from the surface of the membrane and growth proceeds inside the membrane. The amount of polyaniline deposited depends upon the polymerization time. The presence of polyaniline is confirmed by FTIR, scanning electron microscopy, X-ray mapping, cyclic voltammetry and ion exchange capacity measurements. The electrodialysis experiments show improved permselectivity for divalent cations.
Journal: Electrochimica Acta - Volume 52, Issue 15, 20 April 2007, Pages 5046–5052