We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Thermal analysis of binary liquid crystals eutectic system cholesteril p-phenoxi phenyl carbamate-cholesteril p-biphenyl carbamate.
- Authors
Marinescu, Daniela-Crina; Pincu, Elena; Meltzer, Viorica
- Abstract
For a binary mixture of two liquid crystals, cholesteril p-phenoxi phenyl carbamate and cholesteril p-biphenyl carbamate, the solidus-liquidus equilibrium was investigated using differential scanning calorimetry (DSC) and the thermodynamic parameters were obtained. Simple eutectic point was observed for this system, situated approximately at the same temperature for all the studied compositions. This behavior is favored by grinding and is more evident in the composition 50:50. The excess functions G and S for the pre-, post-, and eutectic composition have been calculated using the phase diagram data. Comparing the experimental data with the existing theoretical data, the system deviation from the ideal behavior is observed. The structure of pure compounds was elucidated using FT-IR and hot-stage polarizing microscopy.
- Subjects
THERMAL analysis; BINARY metallic systems; LIQUID crystals; PHENOXIDES; DIFFERENTIAL scanning calorimetry; TEMPERATURE effect; PHASE diagrams
- Publication
Journal of Thermal Analysis & Calorimetry, 2012, Vol 110, Issue 2, p985
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-011-1980-0