Eutectic behaviour of binary mixtures composed of two isomeric lactic acid derivatives
| Autor: | Jaroslav Havlíček, Natalia Podoliak, Petra Tomášková, Miroslav Kašpar, Věra Hamplová, Alexej Bubnov |
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| Rok vydání: | 2016 |
| Předmět: |
Phase transition
Materials science Isotropy 02 engineering and technology Dielectric Atmospheric temperature range 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferroelectricity 0104 chemical sciences Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Crystallography Phase (matter) 0210 nano-technology Phase diagram Eutectic system |
| Zdroj: | Ferroelectrics. 495:105-115 |
| ISSN: | 1563-5112 0015-0193 |
| DOI: | 10.1080/00150193.2016.1136776 |
| Popis: | Mixing of structurally similar self-assembling materials is a powerful tool to tune their mesomorphic, orientational or dielectric properties. We present design and study of binary mixtures composed of two newly designed chiral lactic acid derivatives with a similar structure but different geometry of the molecular core. One compound possesses a monotropic ferroelectric SmC* phase while another shows a direct isotropic – crystalline phase transition. It has been shown that the binary mixtures possess the eutectic behaviour and the ferroelectric phase temperature range has been extended. Moreover, for certain mixtures induced liquid crystalline phases, namely the cholesteric or TGBA phases, were detected. |
| Databáze: | OpenAIRE |
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