Open Access
Journal of Molecular Liquids, volume 317, pages 114244
2,3,4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases
M K Srinatha
1
,
S. Poppe
2
,
G. Shanker
,
Govindaswamy Shanker
1
,
Mohamed Alaasar
3
,
M Alaasar
,
C. Tschierske
2
,
C. Tschierske
Publication type: Journal Article
Publication date: 2020-11-01
Journal:
Journal of Molecular Liquids
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 6
ISSN: 01677322, 18733166
Materials Chemistry
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
Spectroscopy
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
Herein we report the synthesis and investigation of a new type of liquid crystalline trimers. These trimers were designed and synthesized by connecting a 2,3,4-trihydroxy benzonitrile to three 4-cyanobiphenyl units via ether linkages with aliphatic spacers having a variable number of carbon atoms ( n = 5–12). Their phase behaviour has been characterized by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD). It was found that all the synthesized materials exhibit nematic phases that exist over wide temperature ranges and are even stable around ambient temperature. Smectic phases are suppressed and unique fiber formation was found for the nematic phases of these low molecular mass materials. Therefore, this report represents a step forward towards the design and synthesis of single component room temperature nematic materials with unique properties for potential applications. The first examples of low symmetry trimers and these materials provide access to unique low molar mass nematics capable of forming freely suspended fibers. • The first examples of low symmetry trimers forming room temperature nematics • Unique low molar mass nematics capable of forming freely suspended fibers • In comparison with CBs, these trimers provide wider nematic ranges. • Reduced symmetry and dynamic network formation suppress smectic and crystallization.
Top-30
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Citations by publishers
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Elsevier
7 publications, 53.85%
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Taylor & Francis
4 publications, 30.77%
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Wiley
2 publications, 15.38%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Srinatha M. K. et al. 2,3,4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases // Journal of Molecular Liquids. 2020. Vol. 317. p. 114244.
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Srinatha M. K., Poppe S., Shanker G., Shanker G., Alaasar M., Alaasar M., Tschierske C., Tschierske C. 2,3,4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases // Journal of Molecular Liquids. 2020. Vol. 317. p. 114244.
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TY - JOUR
DO - 10.1016/j.molliq.2020.114244
UR - https://linkinghub.elsevier.com/retrieve/pii/S0167732220338435
TI - 2,3,4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases
T2 - Journal of Molecular Liquids
AU - Srinatha, M K
AU - Poppe, S.
AU - Shanker, G.
AU - Alaasar, M
AU - Tschierske, C.
AU - Shanker, Govindaswamy
AU - Alaasar, Mohamed
AU - Tschierske, C.
PY - 2020
DA - 2020/11/01 00:00:00
PB - Elsevier
SP - 114244
VL - 317
SN - 0167-7322
SN - 1873-3166
ER -
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@article{2020_Srinatha,
author = {M K Srinatha and S. Poppe and G. Shanker and M Alaasar and C. Tschierske and Govindaswamy Shanker and Mohamed Alaasar and C. Tschierske},
title = {2,3,4-Trihydroxy benzonitrile-based liquid crystals: Fiber forming room temperature nematic phases},
journal = {Journal of Molecular Liquids},
year = {2020},
volume = {317},
publisher = {Elsevier},
month = {nov},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0167732220338435},
pages = {114244},
doi = {10.1016/j.molliq.2020.114244}
}