Self-assembling superstructures of cyclosiloxane amphiphiles with complex flower shapes and superhydrophobic properties

Huie Zhu, Tillman Jan Buchtal, Masaya Mitsuishi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Complex flower-shaped superstructures (FSSs) have rarely been reported in pure organic systems with a single soft organic molecule without rigid skeletons. Herein, simple self-assembled complex FSSs using amphiphilic organic cyclosiloxane amphiphiles are obtained through a drop-casting solution process. The synergetic effect of amide–amide hydrogen bonding/alkyl hydrophobic interactions can be tuned to generate “flower petals” with either straight ligulate or curved-plate rosaceous corolla shapes. The step-wise petal formation process is also investigated using scanning electron microscopy. Furthermore, FSSs with different petal shapes with varying surface “wettabilities” are demonstrated. The ligulate-like structure forms a networked porous surface that can suspend water droplets with a non-wet contact mode, i.e., a slippery superhydrophoborphobic surface. The surface of the rosaceous corolla petals exhibits a wet-contact mode with respect to the water droplet with sticky superhydrophobicity. The results play a significant role in understanding the structure and properties of self-assembled FSSs, thereby shedding new light on developing new hierarchical materials from soft organic amphiphiles in the future.

本文言語English
論文番号150245
ジャーナルApplied Surface Science
563
DOI
出版ステータスPublished - 2021 10月 15

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 物理学および天文学(全般)
  • 表面および界面
  • 表面、皮膜および薄膜

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