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Unveiling thermal transitions of polymers in subnanometre pores

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  • Takashi Uemura

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku
    PRESTO, Japan Science and Technology Agency (JST), Honcho Kawaguchi)

  • Nobuhiro Yanai

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku)

  • Satoshi Watanabe

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku)

  • Hideki Tanaka

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku)

  • Ryohei Numaguchi

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku)

  • Minoru T. Miyahara

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku)

  • Yusuke Ohta

    (Graduate School of Information Science, Nagoya University, Furo-chou, Chikusa-ku)

  • Masataka Nagaoka

    (Graduate School of Information Science, Nagoya University, Furo-chou, Chikusa-ku)

  • Susumu Kitagawa

    (Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku
    Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku)

Abstract

The thermal transitions of confined polymers are important for the application of polymers in molecular scale devices and advanced nanotechnology. However, thermal transitions of ultrathin polymer assemblies confined in subnanometre spaces are poorly understood. In this study, we show that incorporation of polyethylene glycol (PEG) into nanochannels of porous coordination polymers (PCPs) enabled observation of thermal transitions of the chain assemblies by differential scanning calorimetry. The pore size and surface functionality of PCPs can be tailored to study the transition behaviour of confined polymers. The transition temperature of PEG in PCPs was determined by manipulating the pore size and the pore–polymer interactions. It is also striking that the transition temperature of the confined PEG decreased as the molecular weight of PEG increased.

Suggested Citation

  • Takashi Uemura & Nobuhiro Yanai & Satoshi Watanabe & Hideki Tanaka & Ryohei Numaguchi & Minoru T. Miyahara & Yusuke Ohta & Masataka Nagaoka & Susumu Kitagawa, 2010. "Unveiling thermal transitions of polymers in subnanometre pores," Nature Communications, Nature, vol. 1(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1091
    DOI: 10.1038/ncomms1091
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    Cited by:

    1. Zhang, Shuai & Feng, Daili & Shi, Lei & Wang, Li & Jin, Yingai & Tian, Limei & Li, Ziyuan & Wang, Guoyong & Zhao, Lei & Yan, Yuying, 2021. "A review of phase change heat transfer in shape-stabilized phase change materials (ss-PCMs) based on porous supports for thermal energy storage," Renewable and Sustainable Energy Reviews, Elsevier, vol. 135(C).
    2. Feng, Daili & Feng, Yanhui & Qiu, Lin & Li, Pei & Zang, Yuyang & Zou, Hanying & Yu, Zepei & Zhang, Xinxin, 2019. "Review on nanoporous composite phase change materials: Fabrication, characterization, enhancement and molecular simulation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 109(C), pages 578-605.
    3. Zhang, Shudong & Wang, Zhenyang, 2018. "Thermodynamics behavior of phase change latent heat materials in micro-/nanoconfined spaces for thermal storage and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2319-2331.
    4. Wang, Kai & Yan, Ting & Zhao, Y.M. & Li, G.D. & Pan, W.G., 2022. "Preparation and thermal properties of palmitic acid @ZnO/Expanded graphite composite phase change material for heat storage," Energy, Elsevier, vol. 242(C).
    5. Zhang, Xialan & Lin, Qilang & Luo, Huijun & Luo, Shiyuan, 2020. "Three-dimensional graphitic hierarchical porous carbon/stearic acid composite as shape-stabilized phase change material for thermal energy storage," Applied Energy, Elsevier, vol. 260(C).
    6. Yafang Zhang & Jiebin Tang & Jialin Chen & Yuhai Zhang & Xiangxiang Chen & Meng Ding & Weijia Zhou & Xijin Xu & Hong Liu & Guobin Xue, 2023. "Accelerating the solar-thermal energy storage via inner-light supplying with optical waveguide," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    7. Tomoya Iizuka & Hiroyuki Sano & Benjamin Ouay & Nobuhiko Hosono & Takashi Uemura, 2023. "An approach to MOFaxanes by threading ultralong polymers through metal–organic framework microcrystals," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    8. Yu, Kunyang & Liu, Yushi & Yang, Yingzi, 2021. "Review on form-stable inorganic hydrated salt phase change materials: Preparation, characterization and effect on the thermophysical properties," Applied Energy, Elsevier, vol. 292(C).
    9. Liu, Yang & Zheng, Ruowei & Li, Ji, 2022. "High latent heat phase change materials (PCMs) with low melting temperature for thermal management and storage of electronic devices and power batteries: Critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).

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