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Chirality induction through nano-phase separation: Alternating network gyroid (I4132) phase by thermotropic self-assembly of X-shaped bolapolyphiles

DOI: 10.1002/anie.201911245 DOI Help

Authors: Changlong Chen (Xi’an Jiaotong University) , Robert Kieffer (Martin-Luther-University Halle-Wittenberg) , Helgard Ebert (Martin-Luther-University Halle-Wittenberg) , Marko Prehm (Martin-Luther-University Halle-Wittenberg) , Rui-Bin Zhang (Zhejiang Sci-Tech University) , Xiangbing Zeng (University of Sheffield) , Feng Liu (Xi’an Jiaotong University) , Goran Ungar (University of Sheffield) , Carsten Tschierske (Martin-Luther-University Halle-Wittenberg)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie International Edition

State: Published (Approved)
Published: November 2019

Open Access Open Access

Abstract: The single gyroid phase as well as the alternating double network gyroid, composed of two alternating single gyroid networks, hold a significant place in ordered nanoscale morphologies for their potential applications as photonic crystals, metamaterials and templates for porous ceramics and metals. Here we report the first alternating network cubic liquid crystals. They form through self‐assembly of X‐shaped polyphiles, where the glycerol‐capped terphenyl rods lie on the gyroid surface while the semiperfluorinated and aliphatic side‐chains fill their respective separate channel networks. This new self‐assembly mode can be considered as a two‐color symmetry‐broken double gyroid morphology, providing a tailored way to fabricate novel chiral structures with sub‐10 nm periodicities using achiral compounds.

Journal Keywords: Liquid crystals; chirality; Single Gyroid; Mirror symmetry breaking; Soft Matter

Subject Areas: Chemistry, Materials

Instruments: I22-Small angle scattering & Diffraction

Other Facilities: Shanghai Synchrotron Radiation Facility

Added On: 28/11/2019 10:56


Discipline Tags:

Organic Chemistry Materials Science Soft condensed matter physics Chemistry

Technical Tags:

Scattering Small Angle X-ray Scattering (SAXS)