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<p>Binary mixtures with an equimolar ratio are formed by the formation of hydrogen-bonded liquid crystalline complexes. The complexes are synthesized from precursors formed between α-Keto Glutaric acid (KGA) and hexyloxy benzoic acid (6BAO), as well as between α-Keto Glutaric acid (KGA) and dodecyloxy benzoic acid (12BAO). In order to make a comprehensive analysis of the mesomorphic properties that are presented, exhaustive studies are carried out employing optical, thermal, and spectral characterization techniques. The isolated binary mixes show three different types of mesophases: nematic, smectic C, and smectic G. Fourier Transform Infrared Spectroscopy (FT-IR) is used to validate the intermolecular hydrogen bonding by chemical analysis. Optical analysis is performed using a Polarizing Optical Microscope (POM) to confirm the mesophases and the phase variance exhibited. A Differential Scanning Calorimeter (DSC) is used in thermal analysis to ascertain enthalpy values, phase transition temperatures, and other thermal characteristics associated with the substance being investigated in the current research.</p>

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Analysis of Phase Variance Exhibited by Hydrogen Bond Liquid Crystals Formed Binary Mixtures

  • 期刊论文

  • 发表日期：

    2026年5月18日

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  • K. S. Usha,
  • N. Pongali Sathya Prabu,
  • Sang Yeol Lee

摘要

Binary mixtures with an equimolar ratio are formed by the formation of hydrogen-bonded liquid crystalline complexes. The complexes are synthesized from precursors formed between α-Keto Glutaric acid (KGA) and hexyloxy benzoic acid (6BAO), as well as between α-Keto Glutaric acid (KGA) and dodecyloxy benzoic acid (12BAO). In order to make a comprehensive analysis of the mesomorphic properties that are presented, exhaustive studies are carried out employing optical, thermal, and spectral characterization techniques. The isolated binary mixes show three different types of mesophases: nematic, smectic C, and smectic G. Fourier Transform Infrared Spectroscopy (FT-IR) is used to validate the intermolecular hydrogen bonding by chemical analysis. Optical analysis is performed using a Polarizing Optical Microscope (POM) to confirm the mesophases and the phase variance exhibited. A Differential Scanning Calorimeter (DSC) is used in thermal analysis to ascertain enthalpy values, phase transition temperatures, and other thermal characteristics associated with the substance being investigated in the current research.