"Effect of Hydrogen Bond on Mesomorphic Phases of Binary Liquid Crystal Complexes"

Document Type : Primary Research paper


1 Centre for Materials Research, Department of Physics, Nehru Institute of Technology, Coimbatore-641 105, Tamil Nadu, India

2 Department of Physics, Condensed Matter Research Laboratory (CMRL), Bannari Amman Institute of Technology, Sathyamangalam-638 401, Tamil Nadu, India


Hydrogen Bonded Liquid Crystalline (HBLC) complexes are synthesized from binary mixtures (different Wt%) of 4-decyloxy
benzoic acid (10BAO) and cholesteryl acetate (CHA). Fourier Transform Infrared Spectroscopy (FTIR) studies confirm that the
formation of intermolecular hydrogen bond in the binary complex. HBLC complexes are exhibiting the nematic phase along with
tilted smectic phases. Phase transition properties of HBLC complexes have been investigated by means of Differential Scanning
Calorimetry (DSC). The noteworthy observation is that there is a significant reduction of mesomorphic phases while decreasing
Wt% of 10BAO combination with CHA and from the experimental observations, quenching of smectic C while decreasing Wt%
is identified. Also enhanced phase width and lowering melting temperature in the HBLC binary complex is also noticed.


Volume 12, Issue 3 - Serial Number 3
ICMMNT-2021 International Virtual Conference on Materials, Manufacturing and Nanotechnology, 30th June, 2021.
June 2021
Pages 582-584