論文 Michael Addition Reaction‐Assisted Surface Modification of Melanin Particles for Water‐Repellent Structural Color Coating

Yui Maejima ; Mana Tomizawa ; Ai Takabatake ; Shin‐ichi Takeda ; Hiroshi Fudouzi SAMURAI ORCID (National Institute for Materials Science) ; Keiki Kishikawa ; Michinari Kohri

コレクション

引用
Yui Maejima, Mana Tomizawa, Ai Takabatake, Shin‐ichi Takeda, Hiroshi Fudouzi, Keiki Kishikawa, Michinari Kohri. Michael Addition Reaction‐Assisted Surface Modification of Melanin Particles for Water‐Repellent Structural Color Coating. Macromolecular Reaction Engineering. 2024, 19 (1), 2400040. https://doi.org/10.1002/mren.202400040

説明:

(abstract)

There is significant interest in developing paints based on structural colors, which do not fade like dyes and pigments. To use these paints as coatings, it is necessary to have a technology that can easily impart structural color to the material’s surface without changing color based on the viewing angle. In addition, water-repellent properties that lead to stain resistance are required for practical application. This study applies a structural color coating by synthesizing hydrophobic melanin particles using the Michael addition reaction and arranging these particles on a substrate at high speed. The resulting coating film shows angle-independent structural color due to the amorphous structure of the particle arrangement, and the color tone could be controlled by adjusting the particle size. The combination of the particle’s hydrophobic surface and the microscopic unevenness from the arrangement structure produced a superhydrophobic coating with a contact angle of over 160°. Since the Lotus effect, resulting from super-hydrophobic surface, can maintain the cleanliness of structural color coatings, the findings of this
research will contribute to the development of next-generation coating technology.

権利情報:

  • In Copyright

    This is the peer reviewed version of the following article: Y. Maejima, M. Tomizawa, A. Takabatake, S. Takeda, H. Fudouzi, K. Kishikawa, M. Kohri, Michael Addition Reaction-Assisted Surface Modification of Melanin Particles for Water-Repellent Structural Color Coating. Macromol. React. Eng. 2025, 19, 2400040, which has been published in final form at https://doi.org/10.1002/mren.202400040. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

キーワード: structural colors, super-hydrophobic, Colloidal crystal, Core-shell melanin particles

刊行年月日: 2024-12-18

出版者: Wiley

掲載誌:

  • Macromolecular Reaction Engineering (ISSN: 1862832X) vol. 19 issue. 1 2400040

研究助成金:

  • National Institute for Materials Science

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5914

公開URL: https://doi.org/10.1002/mren.202400040

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更新時刻: 2025-11-18 12:03:41 +0900

MDRでの公開時刻: 2025-12-19 14:11:45 +0900

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