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Molecular picture of fluoropolymer adsorption on nanocarbon materials

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Abstract

Composites of fluoropolymers (FKMs) and nanocarbon fillers have been considered as sealing materials for hydrogen fuel storage. Here, we structurally and dynamically characterize FKM chains adsorbed onto single-walled carbon nanotubes (SWCNTs) and carbon black (CB), as prepared by a solvent leaching method. The glass transition temperatures for FKMs adsorbed onto SWCNTs and CB were found to be higher than the bulk value, and their extent was more remarkable for SWCNTs. The discrepancy in FKM mobility between the two fillers was explained in terms of the manner of chain adsorption via the atomic-scale surface roughness, rather than the surface chemistry, of the fillers.

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Acknowledgements

This research was partly supported by the JST-Mirai Program (JPMJMI18A2) (K.T.).

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Authors and Affiliations

  1. Department of Applied Chemistry, Kyushu University, Fukuoka, Japan

    Daisuke Kawaguchi, Kazuki Sasahara & Keiji Tanaka

  2. Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, Fukuoka, Japan

    Daisuke Kawaguchi, Satoru Yamamoto & Keiji Tanaka

  3. Department of Automotive Science, Kyushu University, Fukuoka, Japan

    Daiki Saito & Keiji Tanaka

  4. CNT Laboratory, R&D Center, ZEON Corporation, Kanagawa, Japan

    Mitsugu Uejima

  5. Research Center for Hydrogen Industrial Use and Storage (HYDROGENIUS), Kyushu University, Fukuoka, Japan

    Hirotada Fujiwara & Shin Nishimura

  6. Department of Mechanical Engineering, Kyushu University, Fukuoka, Japan

    Shin Nishimura

Authors
  1. Daisuke Kawaguchi
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  2. Kazuki Sasahara
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  3. Daiki Saito
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  4. Mitsugu Uejima
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  5. Hirotada Fujiwara
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  6. Shin Nishimura
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  7. Satoru Yamamoto
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  8. Keiji Tanaka
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Correspondence to Daisuke Kawaguchi or Keiji Tanaka.

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Kawaguchi, D., Sasahara, K., Saito, D. et al. Molecular picture of fluoropolymer adsorption on nanocarbon materials. Polym J 53, 1469–1473 (2021). https://doi.org/10.1038/s41428-021-00528-5

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