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Mixing and Elastic Contributions to the Diffusion Coefficient of Polymer Networks

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Download Hi-Res ImageDownload to MS-PowerPointCite This:Macromolecules 2020, 53, 18, 7717-7725
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    Mixing and Elastic Contributions to the Diffusion Coefficient of Polymer Networks
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    Macromolecules

    Cite this: Macromolecules 2020, 53, 18, 7717–7725
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    https://doi.org/10.1021/acs.macromol.0c01427
    Published August 28, 2020
    Copyright © 2020 American Chemical Society
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    Abstract

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    Because the swelling of polymer gels is a diffusion process of the polymer network, the swelling rate is determined by the diffusion coefficient of a polymer network. The diffusion coefficient (D) includes the polymer–solvent mixing contribution (Dmix) and the elastic contribution from the polymer network (Del). In this study, we experimentally investigate D, Dmix, and Del, using tetra gels whose network structural parameters are systematically controllable. We measured D and the shear modulus (G) using dynamic light scattering and dynamic viscoelastic measurement, respectively. According to the Tanaka–Fillmore theory, we evaluate Dmix and Del using the linear relationship between D and G in the as-prepared state. Consequently, we demonstrate a relation of D = Dmix + Del in the as-prepared, swelling, and equilibrium swollen states.

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    • Confirmation of Equilibration of Gels in Swelling State Used for DLS (PDF)

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    Cited By

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    This article is cited by 7 publications.

    1. Xingkun Man, Masao Doi. Swelling Dynamics of a Disk-Shaped Gel. Macromolecules 2021, 54 (10) , 4626-4632. https://doi.org/10.1021/acs.macromol.1c00623
    2. Bohan Liu, Zheqi Chen, Yingwu Luo. Solvent exchange creates transient memory with regulatable lifespan. Materials Today Physics 2024, 40 , 101303. https://doi.org/10.1016/j.mtphys.2023.101303
    3. Ioanna N. Besiri, Thomas B. Goudoulas, Ehsan Fattahi, Thomas Becker. In situ evaluation of alginate‐Ca 2 + gelation kinetics. Journal of Applied Polymer Science 2023, 140 (32) https://doi.org/10.1002/app.54252
    4. Niloufar Yavari, Saeid Azizian. Mixed diffusion and relaxation kinetics model for hydrogels swelling. Journal of Molecular Liquids 2022, 363 , 119861. https://doi.org/10.1016/j.molliq.2022.119861
    5. Shintaro Nakagawa, Naoko Yoshie. Star polymer networks: a toolbox for cross-linked polymers with controlled structure. Polymer Chemistry 2022, 13 (15) , 2074-2107. https://doi.org/10.1039/D1PY01547H
    6. Naoyuki Sakumichi, Yuki Yoshikawa, Takamasa Sakai. Linear elasticity of polymer gels in terms of negative energy elasticity. Polymer Journal 2021, 53 (12) , 1293-1303. https://doi.org/10.1038/s41428-021-00529-4
    7. Takeshi Fujiyabu, Takamasa Sakai, Ryota Kudo, Yuki Yoshikawa, Takuya Katashima, Ung-il Chung, Naoyuki Sakumichi. Temperature Dependence of Polymer Network Diffusion. Physical Review Letters 2021, 127 (23) https://doi.org/10.1103/PhysRevLett.127.237801
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    Macromolecules

    Cite this: Macromolecules 2020, 53, 18, 7717–7725
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.macromol.0c01427
    Published August 28, 2020
    Copyright © 2020 American Chemical Society
    Request reuse permissions

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