title: Dynamics and the mesomorphic properties of a novel antiferroelectric liquid crystalline thiobenzoate MHPSBO10: thermal, optical and dielectric spectroscopy study.
abstract: The complementary studies of the mesomorphic properties of a novel antiferroelectric liquid crystal (AFLC) (S)-2-octile 4-S-(4'decyloxybiphenyl-4-tiocarboxy)benzoate, known under MHPSBO10 acronym have been undertaken. The polymorphism has been complementary studied in details by Differential Scanning Calorimetry (DSC), Transmitted Light Intensity (TLI) and Polarization Microscopy (POM). The switching characteristics along with multiple macroscopic parameters describing the mesomorphic properties were determined by using electro-optic measurements, both upon cooling and heating. Frequency domain dielectric spectroscopy (DS), covering a wide frequency range, has been applied to characterize the molecular motions. Several collective modes, including the low frequency processes in the condensed hexatic phase were detected, analyzed in details and followed with the temperature. The presented studies deliver a wide report of the phase transitions, molecular dynamics and the macroscopic properties of the novel antiferroelectric thiobenzoate.
authors: Department of Chemical Physics, Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland. druzbick@chemia.uj.edu.pl
authors: Kacper
authors: K
authors: Drużbicki
authors: Edward
authors: E
authors: Mikuli
authors: Sławomir
authors: S
authors: Zalewski
authors: Mirosława Danuta
authors: MD
authors: Ossowska-Chruściel
authors: Janusz
authors: J
authors: Chruściel
authors: Stanisław
authors: S
authors: Wróbel
authors: Jan
authors: J
authors: Czerwiec
mesh_terms: D001565:Benzoates / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D003460:Crystallization; D058266:Dielectric Spectroscopy; D050866:Liquid Crystals / Q000737:chemistry*; D008859:Microscopy, Polarization; D056004:Molecular Dynamics Simulation; D044367:Phase Transition; D013055:Spectrophotometry, Infrared; D013438:Sulfhydryl Compounds / Q000737:chemistry
chemical_list: D001565:Benzoates; D013438:Sulfhydryl Compounds