Back to Search
Start Over
Binary mixtures of bent-core molecules forming distinct types of B4 phase nano- and microfilament morphologies.
- Source :
-
Liquid Crystals . Jun2021, Vol. 48 Issue 8, p1129-1139. 11p. - Publication Year :
- 2021
-
Abstract
- The remarkable ability of certain molecules with a bent molecular shape to form hierarchically self-assembled helical building blocks with negative Gaussian or cylindrical curvature featuring in-layer hexatic ordering– so-called B4 phases – has quickly transformed these molecules into desirable building blocks for a variety of potential applications in optics, energy harvesting, and metamaterials. We here demonstrate that these building blocks, helical nanofilaments, helical microfilaments, and heliconical-layered nanocylinders, can to some degree be predictably blended. Supported by scanning as well as transmission electron microscopy and variable angle x-ray scattering data, the three bent-core compounds, each forming exactly one of these B4 morphologies, in binary mixtures at a 1:1 molar ratio, form either the third missing, or one of the two but with opposite handedness, or a random mixture of the two selected morphologies with larger overall dimensions. Furthermore, for two of the mixtures the a priori predicted handedness of the chiral filaments was experimentally confirmed. The third mixture with a priori predicted antagonistic handedness of the initial morphologies forms a combination of the two, one apparently achiral and the other one with opposite handedness. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02678292
- Volume :
- 48
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Liquid Crystals
- Publication Type :
- Academic Journal
- Accession number :
- 151552594
- Full Text :
- https://doi.org/10.1080/02678292.2020.1847333