Synthesis of inorganic-organic hybrid membranes consisting of organotrisiloxane linkages and their fuel cell properties at intermediate temperatures

Masaya Takemoto, Koichiro Hayashi, Shin ichi Yamaura, Wei Zhang, Wataru Sakamoto, Toshinobu Yogo

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)

抄録

Inorganic-organic hybrid membranes consisting of an aliphatic main-chain polymer and trisiloxane bond were synthesized using a simple, one-pot process from a trisiloxane derivative, phosphonic acid acrylate, and vinylbenzotriazole. 1,5-Divinyl-3-phenylpentamethyltrisiloxane (DPPMTS) was copolymerized with 2-hydroxyethyl methacrylate acid phosphate (HEMAP), and N-vinylbenzotriazole (VBT), yielding inorganic-organic hybrid composites. The formation of the inorganic-organic hybrid structure was confirmed by IR, 13C, and 29Si NMR spectroscopy. The membranes exhibited good thermal stabilities up to 200 °C. The aliphatic chains of the methacrylate derivative copolymerized with trisiloxane in the hybrid membranes improved the mechanical properties of the membranes. The tensile modulus of the VBT/HEMAP/DPPMTS membrane with a composition of 1:9:5 was 1.19 GPa. The conductivities of the 1:9:5 membranes were 5.3 × 10−2 S cm−1 and 4.1 × 10−4 S cm−1 at 100 and 19.3% relative humidity (RH), respectively, and 130 °C. The membrane electrode assembly (MEA) using the hybrid membrane exhibited a peak power of 7.8 mW cm−2 at 140 °C and 30% RH.

元の言語英語
ページ(範囲)264-271
ページ数8
ジャーナルpolymer
120
DOI
出版物ステータス出版済み - 6 30 2017

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Fuel cells
Membranes
Temperature
Acids
Atmospheric humidity
Phosphates
Derivatives
Methacrylates
Nuclear magnetic resonance spectroscopy
Polymers
Thermodynamic stability
Elastic moduli
Mechanical properties
Electrodes
Composite materials
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

これを引用

Synthesis of inorganic-organic hybrid membranes consisting of organotrisiloxane linkages and their fuel cell properties at intermediate temperatures. / Takemoto, Masaya; Hayashi, Koichiro; Yamaura, Shin ichi; Zhang, Wei; Sakamoto, Wataru; Yogo, Toshinobu.

:: polymer, 巻 120, 30.06.2017, p. 264-271.

研究成果: ジャーナルへの寄稿記事

Takemoto, Masaya ; Hayashi, Koichiro ; Yamaura, Shin ichi ; Zhang, Wei ; Sakamoto, Wataru ; Yogo, Toshinobu. / Synthesis of inorganic-organic hybrid membranes consisting of organotrisiloxane linkages and their fuel cell properties at intermediate temperatures. :: polymer. 2017 ; 巻 120. pp. 264-271.
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title = "Synthesis of inorganic-organic hybrid membranes consisting of organotrisiloxane linkages and their fuel cell properties at intermediate temperatures",
abstract = "Inorganic-organic hybrid membranes consisting of an aliphatic main-chain polymer and trisiloxane bond were synthesized using a simple, one-pot process from a trisiloxane derivative, phosphonic acid acrylate, and vinylbenzotriazole. 1,5-Divinyl-3-phenylpentamethyltrisiloxane (DPPMTS) was copolymerized with 2-hydroxyethyl methacrylate acid phosphate (HEMAP), and N-vinylbenzotriazole (VBT), yielding inorganic-organic hybrid composites. The formation of the inorganic-organic hybrid structure was confirmed by IR, 13C, and 29Si NMR spectroscopy. The membranes exhibited good thermal stabilities up to 200 °C. The aliphatic chains of the methacrylate derivative copolymerized with trisiloxane in the hybrid membranes improved the mechanical properties of the membranes. The tensile modulus of the VBT/HEMAP/DPPMTS membrane with a composition of 1:9:5 was 1.19 GPa. The conductivities of the 1:9:5 membranes were 5.3 × 10−2 S cm−1 and 4.1 × 10−4 S cm−1 at 100 and 19.3{\%} relative humidity (RH), respectively, and 130 °C. The membrane electrode assembly (MEA) using the hybrid membrane exhibited a peak power of 7.8 mW cm−2 at 140 °C and 30{\%} RH.",
author = "Masaya Takemoto and Koichiro Hayashi and Yamaura, {Shin ichi} and Wei Zhang and Wataru Sakamoto and Toshinobu Yogo",
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AU - Takemoto, Masaya

AU - Hayashi, Koichiro

AU - Yamaura, Shin ichi

AU - Zhang, Wei

AU - Sakamoto, Wataru

AU - Yogo, Toshinobu

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