Regioselective Synthesis of Eight-Armed Cyclosiloxane Amphiphile for Functional 2D and 3D Assembly Motifs

Huie Zhu, Buket Akkus, Yu Gao, Yida Liu, Shunsuke Yamamoto, Jun Matsui, Tokuji Miyashita, Masaya Mitsuishi

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    A crystalline tetramethylcyclotetrasiloxane (TMCS)-derived amphiphile was regioselectively synthesized with eight peripheral hydrophilic amide groups and hydrophobic dodecyl chains by Pt(0)-catalyzed hydrosilylation and amidation reactions. The as-synthesized materials showed ordered lamellar structure formation in the powder form. It also exhibits superior two-dimensional (2D) monolayer formation properties at the air-water interface with unexpectedly high collapse surface pressure and elastic modulus. The monolayers act as two-dimensional building blocks with finely controllable thickness on a several nanometer scale irrespective of the substrate type and properties. The amphiphile forms nanofibers spontaneously by good-poor solvent strategies, which contributes to porous three-dimensional (3D) structures possessing superhydrophobic surface wettability.

    Original languageEnglish
    Pages (from-to)28144-28150
    Number of pages7
    JournalACS Applied Materials and Interfaces
    Volume9
    Issue number34
    DOIs
    Publication statusPublished - 2017 Aug 30

    Keywords

    • LB film
    • amphiphile
    • hydrosilylation
    • self-assembly
    • superhydrophobic

    ASJC Scopus subject areas

    • Materials Science(all)

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