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Lyotropic Supramolecular Helical Columnar Phases Formed by C3-Symmetric and Unsymmetric Rigid Molecules

Authors

  • Daoliang Wang ,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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    • These authors contributed equally to this work.

  • Dr. Youju Huang ,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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    • These authors contributed equally to this work.

  • Junjun Li,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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  • Lu Xu,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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  • Mingming Chen,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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  • Jiaojiao Tao,

    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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  • Prof. Dr. Liangbin Li

    Corresponding author
    1. National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
    • National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, No. 96, JinZhai Road, Hefei, Anhui, 230026 (P. R. China), Fax: (+86) 551-5141078
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Abstract

Unlike thermotropic liquid-crystalline C3-symmetric molecules with flexible chains, the herein-designed fully rigid three-armed molecules (C3-symmetric and unsymmetric) create a fancy architecture for the formation of lyotropic liquid crystals in water. First, hollow columns with triple-stranded helices, analogous to helical rosette nanotubes, are spontaneously constructed by self-organization of the rigid three-armed molecules. Then, the helical nanotubes arrange into hexagonal liquid-crystalline phases, which show macroscopic chirality as a result of supramolecular chiral symmetry breaking. Interestingly, the helical nanotubes constructed by the fully rigid molecules are robust and stable over a wide concentration range in water. They are hardly affected by ionic defects at the molecular periphery, that is, further decoration of functional groups on the molecular arms can presumably be realized without changing the helical conformation. In addition, the formed columnar phases can be aligned macroscopically by simple shear and show anisotropic ionic conductivity, which suggests promising applications for low-dimensional ion-conductive materials.

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