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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/17593

Title: Sulfonated Triazine-Based Porous Organic Polymer for Excellent Proton Conductivity
Authors: Li, Zhongping
Liu, Zhaohan
Li, He
Hasan, Md Mahmudul
Suwansoontorn, Athchaya
Du, Gang
Wang, Dongjin
Zhang, Yuwei
Nagao, Yuki
Keywords: porous organic polymer
water uptake
proton conductivity
Issue Date: 2020-07-16
Publisher: American Chemical Society
Magazine name: ACS Applied Polymer Materials
Volume: 2
Number: 8
Start page: 3267
End page: 3273
DOI: 10.1021/acsapm.0c00425
Abstract: Proton-exchange membrane fuel cells (PEMFCs) are a highly promising green and environmentally friendly way to serve the sustainable development of human civilization. However, high-cost synthesis and pollution problems of perfluorinated sulfonic acid membranes are still not resolved. In this research, we designed and constructed porous organic polymers (POPs) with high porosity and excellent stability via the Friedel−Crafts acylation reaction using commercial products as building blocks and low-cost FeCl3 as a catalyst through a simple operation. POP-BP-1 was successfully synthesized using 1,4- bis(chloromethyl)benzene as a cross-linking agent and reactant. POP-BP-TPOT was prepared using 2,4,6-triphenoxy-1,3,5-triazine (TPOT) as a building unit into the skeleton of POP-BP-1. Sulfonated POPs (S-POPs) were densely decorated with sulfonic acid groups by postsulfonation. POP-BP-TPOT with abundant triazine units and sulfonic acid groups showed high water uptake. The sulfonated triazine-based polymer showed excellent proton conductivity up to 10−2 S cm−1 at 95% relative humidity (RH) under 25 °C and low activation energy of 0.19 eV. Fuel-cell test was also demonstrated using the polymer. This research suggests that the construction of S-POPs opens a suitable method to design high proton-conducting materials.
Rights: Zhongping Li, Zhaohan Liu, He Li, MdMahmudul Hasan, Athchaya Suwansoontorn, Gang Du, Dongjin Wang, Yuwei Zhang, and Yuki Nagao, ACS Applied Polymer Materials, 2(8), pp.3267-3273. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Polymer Materials, copyright (c) American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsapm.0c00425.
URI: http://hdl.handle.net/10119/17593
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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