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

Abstract

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 pi-pi 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.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1327332
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Macromolecules; Journal Volume: 49; Journal Issue: 14
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Cai, Zhengxu, Li, Lianwei, Lo, Wai-Yip, Zhao, Donglin, Wu, Qinghe, Zhang, Na, Su, Yu-An, Chen, Wei, and Yu, Luping. Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures. United States: N. p., 2016. Web. doi:10.1021/acs.macromol.6b00860.
Cai, Zhengxu, Li, Lianwei, Lo, Wai-Yip, Zhao, Donglin, Wu, Qinghe, Zhang, Na, Su, Yu-An, Chen, Wei, & Yu, Luping. Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures. United States. doi:10.1021/acs.macromol.6b00860.
Cai, Zhengxu, Li, Lianwei, Lo, Wai-Yip, Zhao, Donglin, Wu, Qinghe, Zhang, Na, Su, Yu-An, Chen, Wei, and Yu, Luping. 2016. "Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures". United States. doi:10.1021/acs.macromol.6b00860.
@article{osti_1327332,
title = {Controlled Self-Assembly of Cyclophane Amphiphiles: From 1D Nanofibers to Ultrathin 2D Topological Structures},
author = {Cai, Zhengxu and Li, Lianwei and Lo, Wai-Yip and Zhao, Donglin and Wu, Qinghe and Zhang, Na and Su, Yu-An and Chen, Wei and Yu, Luping},
abstractNote = {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 pi-pi 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.},
doi = {10.1021/acs.macromol.6b00860},
journal = {Macromolecules},
number = 14,
volume = 49,
place = {United States},
year = 2016,
month = 7
}