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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2018.28.3.205

Preparation and Characterization of Chitosan Membranes Cross-linked Using Poly(2,6-dimethyl-1,4-phenylene oxide) Polymer and Chitosan  

Son, Tae Yang (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Ko, Tae Ho (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Jung, Ji Hye (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Hong, Jun Ui (Department of polymer science and engineering, Gyeongsang National University)
Nam, Sang Yong (Department of Materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Publication Information
Membrane Journal / v.28, no.3, 2018 , pp. 205-213 More about this Journal
Abstract
In this study, cross-linked membrane were successfully prepared by using brominated PPO (Br-PPO) as the main polymer chain. Chitosan and quaternary ammonium modified chitosan (QA-chitosan) was used as the cross linking agents. The cross linked membranes were post-functionalized by using trimethylamine solution. The degree of cross linking was also controlled by varying the ratio of cross linking agent. The applicability of the cross-linked membrane (A-PPO + chitosan, A-PPO + QA-chitosan) as ion exchange membranes was verified through various characterization techniques. The cross-linked membrane using QA-chitosan as cross linking agent was found to be better in performance than the membrane using pristine chitosan cross linking agent. As the percentage of QA-chitosan increased, the ion exchange capacity from 1.18 meq/g to 1.53 meq/g and water uptake from 21.6% to 42.2% was improved.
Keywords
Chitosan; quaternary ammonium; cross-link; ionic polymer;
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