Chemical-physical characterization of a binary mixture made of a photosensitive azobenzene derivative and a smectogen

0456008 - FZÚ 2016 RIV US eng J - Journal Article
Borello, E. - Cifelli, M. - Duce, C. - Galli, G. - Tine, M.R. - Hamplová, Věra - Ambrozic, G. - Domenici, V.
Chemical-physical characterization of a binary mixture made of a photosensitive azobenzene derivative and a smectogen.
Molecular Crystals and Liquid Crystals. Roč. 614, č. 1 (2015), s. 54-61. ISSN 1542-1406. E-ISSN 1563-5287
R&D Projects: GA ČR GA13-14133S; GA MŠMT(CZ) 7AMB14PL035
Grant - others:AVČR(CZ) M100101204; AVČR(CZ) M100101211
Institutional support: RVO:68378271
Keywords : liquid crystalline mixture * nematic * smectic A * photosensitive molecules * DSC * 2HNMR
Subject RIV: CC - Organic Chemistry
Impact factor: 0.532, year: 2015

We present the characterization of new binary mixtures made of two rod-like molecules: a photosensitive azobenzene derivative (called J7) and a smectogen (called M11). The interest in these two specific compounds is related to their use as basic constituents of photo-active liquid crystalline elastomers and their opto-mechanic applications. Differential scanning calorimetry and polarized optical microscopy were used to characterize the phase diagram of the binary system J7-M11. 2H NMR spectroscopy of the 2H-selectively labelled M11, either alone or as a probe in binary mixtures containing different ratios J7/M11, was applied to study the orientational ordering properties.
Permanent Link: http://hdl.handle.net/11104/0256589