Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
Journal Home Volume Issue |
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Issue |
Volume-6, Issue-1, Spl. Iss-2 ( Mar, 2018 ) | |||||||||
Paper Title |
Doppler Broadening Positron Annihilation Analysis and Desalination Efficiency of Reverse-Osmosis Polyamide Membranes | |||||||||
Author Name |
Ling-Yung Hung, Chien-Chieh Hu, Shingjiang Jessie Lue | |||||||||
Affilition |
Department of Chemical and Materials Engineering, Chang Gung University, Taiwan Department of Chemical Engineering and Center of Membrane Technology, Chung Yuan University, Taiwan Department of Radiation Oncology, Chang Gung Memorial Hospital, Taiwan Department of Safety, Health and Environmental Engineering, Ming-Chi University of Technology, Taiwan | |||||||||
Pages |
4-7 | |||||||||
Abstract |
Two commercial polyamide (PA) thin film composites with different PA cross-linking densities were examined on the morphology, chemical structure, Doppler broadening positron annihilation spectroscopy, and salt desalination performance. The highly cross-linked AG sample resulted in a higher salt rejection but slightly lower water permeance. Meanwhile the highly cross-linked sample showed a smaller S parameter than the loosely cross-linked one. The interplay between polymer cross-linking structure, salt rejection behavior, and Doppler broadening annihilation spectra is discussed. Index Terms - Cross-linked polyamide, Doppler broadening spectra, interfacial polymerization, salt rejection. | |||||||||
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