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

被引：22

作者：

Zhu, Huie ^{[1
]}

Akkus, Buket ^{[1
]}

Gao, Yu ^{[1
]}

Liu, Yida ^{[1
]}

Yamamoto, Shunsuke ^{[1
]}

Matsui, Jun ^{[2
]}

Miyashita, Tokuji ^{[1
]}

Mitsuishi, Masaya ^{[1
]}

机构：

[1] Tohoku Univ, IMRAM, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[2] Yamagata Univ, Dept Mat & Biol Chem, 1-4-12 Kojirakawamachi, Yamagata 9908560, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 34期

基金：

日本学术振兴会;

关键词：

amphiphile; hydrosilylation; LB film; superhydrophobic; self-assembly; HYDROSILYLATION; SILSESQUIOXANES; MECHANISM; FILM;

D O I：

10.1021/acsami.7b07331

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A crystalline tetramethylcydotetrasiloxane (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.

引用

页码：28144 / 28150

页数：7

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