Gemini Thermotropic Smectic Liquid Crystals for Two-Dimensional Nanostructured Water-Treatment Membranes

被引：30
作者：
Hamaguchi, Kazuma [1 ]
Ichikawa, Rino [1 ]
Kajiyama, Satoshi [1 ]
Torii, Shotaro [2 ]
Hayashi, Yusuke [1 ]
Kumaki, Jiro [3 ]
Katayama, Hiroyuki [2 ]
Kato, Takashi [1 ]
机构：
[1] Univ Tokyo, Sch Engn, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan
[2] Univ Tokyo, Sch Engn, Dept Urban Engn, Bunkyo Ku, Tokyo 1138656, Japan
[3] Yamagata Univ, Grad Sch Organ Mat Sci, Dept Organ Mat Sci, Yonezawa, Yamagata 9928510, Japan
来源：
ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 17期
关键词：
smectic liquid crystal; self-assembly; nanostructure; gemini amphiphile; water treatment; NANOPOROUS MEMBRANES; PROTON-CONDUCTIVITY; POLYMER MEMBRANES; ION-TRANSPORT; FILTRATION; DESIGN; ASSEMBLIES; SEPARATION; NETWORKS; SIZE;
D O I：
10.1021/acsami.0c20524
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We have developed a two-dimensional (2D) liquid-crystalline (LC) nanostructured water-treatment membrane showing high virus rejection ability (over 99.99997% for bacteriophage Q beta) and improved water permeation. Polymerizable gemini amphiphiles have been designed and synthesized. They have H-shaped gemini-type structures of thermotropic smectic liquid crystals composed of cationic imidazolium moieties. One of the gemini amphiphiles shows a smectic A phase with an interdigitated bilayer structure. A cross-linked self-standing 2D nanostructured polymer film has been obtained by in situ photopolymerization of the gemini amphiphile in the smectic phase. The length of linkers in gemini amphiphiles affects the formation of LC phases. The 2D nanostructured membrane also showed selective salt rejection.
引用
收藏
页码：20598 / 20605
页数：8
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