Perfluorodecalin incorporation of fluorinated surfactant-water system: Tailoring of mesoporous materials pore size

Article Abstract:

The effect of perfluorodecalin (PFD) addition on the fluorinated surfactant CF3((CF2)sub 7)C2H4-((OC2H4) sub 9)OH/ water system is investigated to study the phase behavior of surfactant/water systems. Based on the characterization of the recovered materials, the mechanism stating the swelling effect of PFD on liquid crystals phase is proposed.

Methods, Chemical properties, Methyl groups, Fluorination, Methyl compounds

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Structure of liquid crystal droplets with chiral propeller texture

Article Abstract:

The experimental studies of a nematic liquid crystal with molecules which formed twisted head-to-head H-bonded dimers are reported. The results show that the material in nematic phase in the droplets exhibited nonzero chirality due to spontaneous chiral phase separation.

Chirality

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Effect of the elastic constant anisotropy on disclination interaction in the nematic polymers

Article Abstract:

Disclination interaction behavior in relation to Frank elastic constant anisotropy in nematics is studied. It is found that disclination pairs are influenced not only by elastic anisotropy but also by diclination interaction during the whole annihilation.

Polymers, Anisotropy, Optical properties

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