NDLI: Design, Synthesis and Characterization of Hydrogen Bonded Binary Liquid Crystal Complex from 4-Methoxycinnamic Acid and 4-Hexyloxybenzoic Acid (4MCA:6OBA)

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Design, Synthesis and Characterization of Hydrogen Bonded Binary Liquid Crystal Complex from 4-Methoxycinnamic Acid and 4-Hexyloxybenzoic Acid (4MCA:6OBA)

Content Provider	Scilit
Author	Kumar, Thamilarasan Ranjeeth Sundaram, Sankaran Chitravel, Thangaiyan Jayaprakasam, Ramasamy Vijayakumar, Vellalapalayam Nallagounder
Copyright Year	2017
Abstract	Hydrogen bonded liquid crystal (HBLC) binary mixture has been synthesized from mesogenic 4-methoxycinnamic acid (4MCA) and mesogenic 4-hexyloxybenzoic acid (6OBA) with different mole ratio. The mesomorphic phase behavior and corresponding phase transition temperatures along with the enthalpy values were investigated by differential scanning calorimetry (DSC). The characteristic textures of 4MCA+6OBA binary mixture were observed by using polarizing optical microscope (POM). Fourier transform infrared spectroscopic (FT-IR) studies confirm the formation of hydrogen bond in the present binary mixture. A note worthy observation in this complex is that pure mesogens have no smectic phase where as 4MCA+6OBA binary mixture exhibits a nematic phase along with higher order smectic C (Sm C) phase. Variation of mole ratio influences thermal properties such as phase peak, enthalpy values and thermal span width of the present HBLC binary mixture complex. The optical tilt angle of 4MCA+6OBA for smectic C phase and thermal stability factors have been investigated. Optical tilt angle for smectic C phase is determined and same is fitted to a power law.
Related Links	http://www.degruyter.com/downloadpdf/j/zpch.2017.231.issue-11-12/zpch-2016-0955/zpch-2016-0955.xml
Ending Page	1890
Page Count	16
Starting Page	1875
ISSN	09429352
e-ISSN	21967156
DOI	10.1515/zpch-2016-0955
Journal	Zeitschrift für Physikalische Chemie
Issue Number	11-12
Volume Number	231
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2017-11-27
Access Restriction	Open
Subject Keyword	Zeitschrift Für Physikalische Chemie Spectroscopy Dsc Ft-ir Hblc Nematic Pom Smectic Thermal Stability Journal: Zeitschrift für Physikalische Chemie, Issue- 3
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

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