Lei Liu, Qing Li, Jingwen Dai
Mar 1, 2014
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Journal
Journal of Membrane Science
Abstract
Abstract A facile strategy for the synthesis of guanidinium-functionalized poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) with improved alkaline stability was developed by the reaction of bromomethylated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO) with 2-benzyl-1,1,3,3-tetramethylguanidine (BTMG). The chemical structure of guanidinium-functionalized polymers was confirmed by 1H NMR and FT-IR spectroscopy. A crosslinked membrane of the polymer which have an ionic exchange capacity (0.80 mmol/g) and low swelling ratio (