Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures

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• 作者：Zhengxu Cai ; Lianwei Li ; Wai-Yip Lo ; Donglin Zhao ; Qinghe Wu ; Na Zhang ; Yu-An Su ; Wei Chen ; Luping Yu
• 刊名：Macromolecules
• 出版年：2016
• 出版时间：July 26, 2016
• 年：2016
• 卷：49
• 期：14
• 页码：5172-5178
• 全文大小：482K
• 年卷期：0
• ISSN：1520-5835

文摘

A novel series of amphiphilic TC-PEG molecules were designed and synthesized based on the orthogonal cyclophane unit. These molecules were able to self-assemble from 1D nanofibers and nanobelts to 2D ultrathin nanosheets (3 nm thick) in a controlled way by tuning the length of PEG side-chains. The special structure of the cyclophane moiety allowed control in construction of nanostructures through programmed noncovalent interactions (hydrophobic–hydrophilic interaction and π–π interaction). The self-assembled nanostructures were characterized by combining real space imaging (TEM, SEM, and AFM) and reciprocal space scattering (GIWAXS) techniques. This unique supramolecular system may provide a new strategy for the design of materials with tunable nanomorphology and functionality.