TY  - JOUR
AU  - Hakemi, H.
AU  - Hakemi, G.
PY  - 2020
DA  - 2020/01/03
TI  - Phase Equilibria of Flexible Polymer and Monomer Liquid Crystal Blends
JO  - Recent Progress in Materials
SP  - 001
VL  - 02
IS  - 01
AB  - In this study, we explored the phase equilibria in blends of a nematic liquid crystal monomer and a nematic liquid crystal flexible polymer within the whole composition of the phase diagram. The crystal-nematic and nematic-isotropic transition temperatures, as well as the transition enthalpies and entropies, indicated the total miscibility in this mesogenic blend system. We also extracted an empirical axial ratio of 4.52 for the polymer from the nematic-isotropic transitions of the blends. Further, from the biphasic nematic-isotropic transitions of the blends in low concentration regions, we estimated the entropies of pure monomer and polymer from a theoretical lattice model. The calculated and experimental results showed good agreement. This work will be continued with a more detailed study of phase equilibria and comparison with other theoretical models in nematic flexible polymer and non-mesogenic rigid-rod monomer blends will be made.
SN  - 2689-5846
UR  - https://doi.org/10.21926/rpm.2001001
DO  - 10.21926/rpm.2001001
ID  - Hakemi2020
ER  -