Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Autori: Anca Moanţã, Catalina Ionescu, Petre Rotaru, Margareta Socaciu, Ana Hãrãbor
Editorial: Journal of Thermal Analysis and Calorimetry, 102 (3), p.1079-1086, 2010.
Using the Williamson method, a new dye
with liquid crystalline properties was synthesized. The
structure and the thermal behavior of CODA were investigated
by means of nuclear magnetic resonance, X-ray
diffraction, differential scanning calorimetry, and light
polarized optical microscopy techniques. The thermophysical
processes were monitored by heating-cooling cycles,
but the formation of liquid crystal phases were exhibited
only for small values of the cooling rates. For the first
heating-cooling cycle, the melting and the solidification
processes, thus the characteristic temperatures, are shifted
to higher values when compared to the following cycles.
Cuvinte cheie: Azomonoethers, DSC, NMR, LPOM