Critical behaviour at the nematic–smectic A phase transition in a binary mixture showing induced nematic phase

RSC Advances ◽  
2014 ◽  
Vol 4 (38) ◽  
pp. 19861 ◽  
Author(s):  
Sudipta Kumar Sarkar ◽  
Malay Kumar Das
Keyword(s):  
Phase Transition ◽  
Binary Mixture ◽  
Nematic Phase ◽  
Critical Behaviour ◽  
Smectic A ◽  
Smectic A Phase

Studies of critical behaviour at the nematic to smectic A phase transition in C6 and C7 binary mixture system

2008 ◽  
Vol 41 (6) ◽  
pp. 062002 ◽  
Author(s):  
SeungYeon Jeong ◽  
DongWoo Kim ◽  
KungWon Rhie ◽  
MunPyo Hong ◽  
Satyendra Kumar ◽  
...  
Keyword(s):  
Phase Transition ◽  
Binary Mixture ◽  
Critical Behaviour ◽  
Smectic A ◽  
Smectic A Phase ◽  
Mixture System

Effect of the hockey-shaped mesogen as an additive on the critical behaviour at the smectic A to nematic phase transition

2016 ◽  
Vol 219 ◽  
pp. 608-613 ◽  
Author(s):  
Susanta Chakraborty ◽  
Anish Chakraborty ◽  
Malay Kumar Das ◽  
Wolfgang Weissflog
Keyword(s):  
Phase Transition ◽  
Nematic Phase ◽  
Critical Behaviour ◽  
Smectic A

ANISOTROPY OF THE NEMATIC-SMECTIC A PHASE TRANSITION

1995 ◽  
Vol 09 (18n19) ◽  
pp. 2139-2155 ◽  
Author(s):  
BARBARA S. ANDERECK
Keyword(s):  
Phase Transition ◽  
Critical Behavior ◽  
Nematic Phase ◽  
Theoretical Work ◽  
Review Article ◽  
Superconducting Transition ◽  
Work Related ◽  
Smectic A ◽  
Smectic A Phase ◽  
Degree Of Anisotropy

Critical behavior at the transition from the nematic phase to the smectic A phase in liquid crystals has been of interest for over two decades. Discussions about the nature of the transition, its analogy to the superconducting transition, and the degree of anisotropy present in the critical exponents have been extensive during this time. This review article concentrates on the question of anisotropy at the nematic-smectic A transition. The experimental and theoretical work related to this question is summarized and compared. While progress has been made, there are many interesting questions related to this transition that remain for investigators to answer.

Structure and Thermal Behaviour of a Thermotropic Liquid Crystalline Polyimide (PI-LC)

1998 ◽  
Vol 10 (1) ◽  
pp. 147-153 ◽  
Author(s):  
M Tanaka ◽  
M Konda ◽  
M Miyamoto ◽  
Y Kimura ◽  
A Yamaguchi
Keyword(s):  
Phase Transition ◽  
Thermal Analysis ◽  
Nematic Phase ◽  
Liquid Crystalline ◽  
Polarized Light ◽  
Isotropic Phase ◽  
X Ray ◽  
Smectic A ◽  
Smectic C ◽  
Smectic A Phase

Anomalous solid structures formed by a thermotropic liquid crystalline polyimide (PI-LC) were investigated by thermal analysis, polarized light microscopy and x-ray analysis. It was revealed that PI-LC should undergo a phase transition from the crystalline to the isotropic phase through the smectic or nematic phase in the temperature range 277–300 °C. The PI-LC filament extruded at 280 °C, at which temperature the polymer was in liquid crystalline phase, was formed to have a structure similar to the smectic C phase, while that extruded and melt-drawn at 310 °C, at which temperature the polymer was in the isotropic phase, had a structure similar to the smectic A phase.

Simultaneous photoacoustic measurements of specific heat and thermal conductivity critical behaviour at a smectic A–nematic phase transition

1989 ◽  
Vol 4 (6) ◽  
pp. 619-624 ◽  
Author(s):  
U. Zammit ◽  
M. Marinelli ◽  
R. Pizzoferrato ◽  
F. Scudieri ◽  
S. Martellucci
Keyword(s):  
Phase Transition ◽  
Thermal Conductivity ◽  
Specific Heat ◽  
Nematic Phase ◽  
Critical Behaviour ◽  
Smectic A
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