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  • 1 Department of Physics, Faculty of Sciences, University of Novi Sad Trg D. Obradovića 4, Novi Sad, Serbia and Montenegro Trg D. Obradovića 4, Novi Sad, Serbia and Montenegro
  • | 2 Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences 1525 Budapest, P.O. Box 49, Hungary 1525 Budapest, P.O. Box 49, Hungary
  • | 3 Department of Physics, Faculty of Sciences, University of Novi Sad Trg D. Obradovića 4, Novi Sad, Serbia and Montenegro Trg D. Obradovića 4, Novi Sad, Serbia and Montenegro
  • | 4 Institute of Physics, Academy of Sciences of the Czech Republic Na Slovance 2, 18221 Prague, Czech Republic Na Slovance 2, 18221 Prague, Czech Republic
  • | 5 Institute of Physics, Academy of Sciences of the Czech Republic Na Slovance 2, 18221 Prague, Czech Republic Na Slovance 2, 18221 Prague, Czech Republic
  • | 6 Institute of Physics, Academy of Sciences of the Czech Republic Na Slovance 2, 18221 Prague, Czech Republic Na Slovance 2, 18221 Prague, Czech Republic
  • | 7 Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences 1525 Budapest, P.O. Box 49, Hungary 1525 Budapest, P.O. Box 49, Hungary
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Thermal properties of a homologous series of ferroelectric liquid crystals S-(-)-[4-(2-n-alkoxy-propionyloxy)]biphenyl-4'-[n-alkoxy-(3,5-dimethyl)]benzoate have been investigated by polarizing optical microscopy and differential scanning calorimetry. The mesophases were identified and confirmed by X-ray too. Three binary mixtures were prepared from the individual homologues. In one of the mixtures (Mix1), the ferroelectric SmC* phase has broadened and became enantiotropic. This mesophase remained monotropic in the other two mixtures (Mix2, Mix3). The chiral nematic N* phase did not appear in Mix1, but remained monotropic for the other two mixtures. Two molecular parameters, the layer spacing and the average intermolecular distance have been calculated from the X-ray results for the homologues and their mixtures. An intercalated tail-to-tail packing of molecules was found both in the single compounds and their mixtures resulting in the layer spacing about half of the molecular length of the single compounds.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)