TY - JOUR
T1 - Proton-conductive polymeric ionic liquids block copolymer of poly(vinylphosphonic acid)/1-propylimidazole-b-polystyrene for polymer electrolyte membrane fuel cells
AU - Suzuki, Yukina
AU - Nohara, Tomohiro
AU - Tabata, Keisuke
AU - Yamakado, Ryohei
AU - Shimada, Ryuichiro
AU - Nakazaki, Haruki
AU - Saito, Takaaki
AU - Makino, Tsutomu
AU - Arita, Toshihiko
AU - Masuhara, Akito
N1 - Funding Information:
This work was performed under the Cooperative Research Program of the Network Joint Research Center for Materials and Devices (20211084), Iwatani Naoji Foundation.
Funding Information:
This research was supported by the JST Adaptable and Seamless Technology Transfer Program through Target-Driven R&D (A-STEP) Grant No. JP21K19132.
Publisher Copyright:
© 2022 The Japan Society of Applied Physics.
PY - 2022/6
Y1 - 2022/6
N2 - Polymer electrolyte membrane (PEM) fuel cells have challenges in operation under low-humidity conditions caused by a proton conduction mechanism dependent on water. We focused on polymeric ionic liquids (PILs), which are promising for high proton conductivity under a wide range of environments because they have the characteristics of polymer electrolyte liquids. However, it is difficult to fabricate self-standing membranes of PILs due to their high hygroscopicity and fluidity. In this paper, to inhibit the fluidity of the PIL in developing a self-standing PEM, the hydrophobic chain segment of styrene is inserted between the PILs of poly(vinylphosphonic acid/1-propylimidazole) (P(VPA/1PIm)) by RAFT polymerization. The synthesized sample of P(VPA/1PIm)-block-polystyrene is potentially applicable to PEM materials because it was obtained in powder state, having a high heat resistance of up to 300 °C, and exhibiting a proton-conducting property under a wide range of environments.
AB - Polymer electrolyte membrane (PEM) fuel cells have challenges in operation under low-humidity conditions caused by a proton conduction mechanism dependent on water. We focused on polymeric ionic liquids (PILs), which are promising for high proton conductivity under a wide range of environments because they have the characteristics of polymer electrolyte liquids. However, it is difficult to fabricate self-standing membranes of PILs due to their high hygroscopicity and fluidity. In this paper, to inhibit the fluidity of the PIL in developing a self-standing PEM, the hydrophobic chain segment of styrene is inserted between the PILs of poly(vinylphosphonic acid/1-propylimidazole) (P(VPA/1PIm)) by RAFT polymerization. The synthesized sample of P(VPA/1PIm)-block-polystyrene is potentially applicable to PEM materials because it was obtained in powder state, having a high heat resistance of up to 300 °C, and exhibiting a proton-conducting property under a wide range of environments.
KW - ionic liquid
KW - polymer electrolyte membrane fuel cell
KW - proton-conductive polymer
KW - RAFT polymerization
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U2 - 10.35848/1347-4065/ac51c2
DO - 10.35848/1347-4065/ac51c2
M3 - Article
AN - SCOPUS:85131052482
SN - 0021-4922
VL - 61
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - SD
M1 - SD1034
ER -