A facile strategy for the synthesis of guanidinium-functionalized polymer as alkaline anion exchange membrane with improved alkaline stability

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 chemic...

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Veröffentlicht in:	Journal of membrane science 2014-03, Vol.453, p.52-60
Hauptverfasser:	Liu, Lei, Li, Qing, Dai, Jingwen, Wang, Hu, Jin, Bangkun, Bai, Ruke
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkaline anion exchange membrane Alkaline stability ambient temperature Anion exchanging Applied sciences cations Chemistry Colloidal state and disperse state Crosslinking Exact sciences and technology Exchange resins and membranes Forms of application and semi-finished materials Fourier transform infrared spectroscopy fuel cells General and physical chemistry guanidinium Guanidinium-functionalized polymer hydrophilicity hydrophobicity ion-exchange membranes Ionic conductivity mechanical properties Membranes microstructure nuclear magnetic resonance spectroscopy Oxides Poly(2,6-dimethyl-1,4-phenylene oxide) Polymer industry, paints, wood polymers separation Stability Strategy Synthesis Technology of polymers transmission electron microscopy
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Zusammenfassung:	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 (0.80mmol/g) and low swelling ratio (
ISSN:	0376-7388 1873-3123
DOI:	10.1016/j.memsci.2013.10.054