Planar-fingerprint transition in a thermoreversible liquid crystalline gel
نویسندگان
چکیده
منابع مشابه
A zipper model approach to the thermoreversible gel-sol transition
2014 The gel-sol transition of thermo-reversible gels is examined theoretically by using a zipper model which has been used for explaining the helix-coil transition and the melting of deoxyribonucleic acid (DNA). The endothermic peaks in a heating curve of differential scanning calorimetry for various thermoreversible gels are analysed by this treatment. J. Phys. France 51 (1990) 1759-1768 15 A...
متن کاملIsotropic-cholesteric transition in liquid-crystalline gels.
In a nematic gel, the appearance of nematic order is accompanied by a spontaneous elongation of the gel parallel to the nematic director. If such a gel is made chiral, it has a tendency to form a cholesteric helical texture, in which local elongation of the gel parallel to the nematic director is suppressed due to the requirement of elastic compatibility. We show that a conical helix in which t...
متن کاملIsotropic-nematic transition in liquid-crystalline elastomers.
In liquid-crystalline elastomers, the nematic order parameter and the induced strain vary smoothly across the isotropic-nematic transition, without the expected first-order discontinuity. To investigate this smooth variation, we measure the strain as a function of temperature over a range of applied stress, for elastomers cross-linked in the nematic and isotropic phases, and analyze the results...
متن کاملPreparation of a cholesteric liquid crystalline phase in planar orienting liquid crystal cells exhibits
Preparation of a cholesteric liquid crystalline phase in planar orienting liquid crystal cells exhibits discontinuous colour changes with temperature when viewed between crossed polarizers. The trans mission spectra of such a system can be described by a modified de Vries equation, with the bire fringence dispersion included in a simplified single-band model. With a suitable choice of the cel...
متن کاملCultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition
Microalgae represent a promising source of renewable biomass for the production of biofuels and valuable chemicals. However, energy efficient cultivation and harvesting technologies are necessary to improve economic viability. A Tris-Acetate-Phosphate-Pluronic (TAPP) medium that undergoes a thermoreversible sol-gel transition is developed to efficiently culture and harvest microalgae without af...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2005
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.71.051707