The influence of structural changes of symmetrical dimers containing two phenyl groups on liquid crystalline behaviour |
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| Authors: | Ewa Białecka-Florjańczyk Irma Śledzińska Ewa Górecka |
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| Affiliation: | 1. Warsaw University of Life Sciences - SGGW, Institute of Chemistry , Warsaw , Poland ewa_bialecka_florjanczyk@sggw.pl;3. Warsaw University of Technology, Faculty of Physics , Warsaw , Poland;4. Warsaw University, Department of Chemistry, Laboratory of Dielectrics , Warsaw , Poland |
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| Abstract: | Some symmetrical dimeric compounds containing biphenyl, biphenylcarboxylic acid or benzoiloxyphenyl moieties and polymethylene spacers were synthesised. The mesogenic properties of the synthesised compounds were investigated by optical microscopy, calorimetric and X-ray methods. It was shown that the location and direction of the ester bonds has a crucial significance in mesophase formation. |
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| Keywords: | dimeric liquid crystals biphenyl polarity dipole moment |
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