Tetrazole tethered polymers for alkaline anion exchange membranes

doi:10.1007/s11705-017-1690-7

Front. Chem. Sci. Eng.

2018, Vol. 12

Issue (2) : 306-310 https://doi.org/10.1007/s11705-017-1690-7

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Tetrazole tethered polymers for alkaline anion exchange membranes

Erigene Bakangura, Yubin He, Xiaolin Ge, Yuan Zhu, Liang Wu, Jin Ran, Congliang Cheng, Kamana Emmanuel, Zhengjin Yang, Tongwen Xu(

)

CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China

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Abstract

Poly(2,6-dimethyl-1,4-phenylene oxide) was tethered with a 1,5-disubstituted tetrazole through a quaternary ammonium linkage. The formation of a tetrazole-ion network in the resulting polymers was found to promote the hydroxide ion transport through the Grotthus-type mechanism.

Keywords anion exchange membrane fuel cell phase separation tetrazole

Corresponding Author(s): Tongwen Xu

Just Accepted Date: 30 October 2017 Online First Date: 26 February 2018 Issue Date: 09 May 2018

Cite this article:

Erigene Bakangura,Yubin He,Xiaolin Ge, et al. Tetrazole tethered polymers for alkaline anion exchange membranes[J]. Front. Chem. Sci. Eng., 2018, 12(2): 306-310.

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-017-1690-7
https://academic.hep.com.cn/fcse/EN/Y2018/V12/I2/306

Fig.1 Illustration and chemical structures of tetrazole supported to quaternized poly (2,6-dimethyl-1,4-phenylene oxide)

Samples	SD /%	IEC^a,b) /(meq·g^?1)	WU^b) /%	λ^b)	$σ O H − 1$ /(mS·cm^?1)
t-QBTTPPO-15	15	0.62	5.9	5.28	6.72
t-QBTTPPO-20	20	0.91	9.4	5.73	10.6
t-QBTTPPO-25	25	1.11	12.1	6.11	14.7
t-QBTTPPO-30	30	1.32	16.7	6.72	23.18
QPPO-25	25	1.49	48.7	18.15	12.9

Tab.1 Electrochemical properties of t-QBTTPPO-x membranes at 25 °C

Fig.2 Water uptakes (a) and swelling ratios (b) of the t-QBTTPPO-30 and QPPO-25 vs. temperature

Fig.3 (a) Hydroxide conductivities of the t-QBTTPPO-30 and QPPO-25 vs. temperature, and (b) the Arrhenius plot

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