New liquid crystal formation induced by nanoscale phase separation composed of bent-core liquid crystal and rod-like cholesteric liquid crystal mixtures

Soft Matter ◽

10.1039/d0sm01748e ◽

2021 ◽

Author(s):

Yoichi Takanishi

Keyword(s):

Liquid Crystal ◽

Phase Separation ◽

Liquid Crystals ◽

Small Angle ◽

Cholesteric Liquid Crystal ◽

Crystal Formation ◽

Nano Structure ◽

X Ray ◽

Nanoscale Phase Separation ◽

X Ray Scattering

Herein, the local nano-structure in mixtures of cholesteric liquid crystals and a bent-core molecule was analyzed via the small-angle X-ray scattering.

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Nanoscale Phase Separation of P3HT PCBM Thick Films As Measured by Small-Angle X-ray Scattering

Macromolecules ◽

10.1021/ma2007706 ◽

2011 ◽

Vol 44 (16) ◽

pp. 6503-6508 ◽

Cited By ~ 61

Author(s):

Andrew J. Parnell ◽

Ashley J. Cadby ◽

Oleksandr O. Mykhaylyk ◽

Alan D. F. Dunbar ◽

Paul E. Hopkinson ◽

...

Keyword(s):

Phase Separation ◽

Small Angle ◽

Thick Films ◽

X Ray ◽

Nanoscale Phase Separation ◽

X Ray Scattering ◽

Ray Scattering

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Liquid Crystals in Ternary Polyoxyethylene Trisiloxane Surfactant - Silicone Oil - H2O System

MRS Proceedings ◽

10.1557/proc-425-173 ◽

1996 ◽

Vol 425 ◽

Author(s):

X. Li ◽

R. M. Hill ◽

L. E. Scriven ◽

H. T. Davis

Keyword(s):

Liquid Crystal ◽

Liquid Crystals ◽

Small Angle ◽

Silicone Oil ◽

Head Group ◽

X Ray ◽

X Ray Scattering ◽

Crystal Phases ◽

Liquid Crystal Phases ◽

Ray Scattering

AbstractPolyethylene trisiloxane surfactants M(D′En)M (n=6, 8, 10, 12) self assemble into sheet-like structure and form various lyotropic cubic, hexagonal and lamellar liquid crystal phases in ternary trisiloxane surfactant - silicone oil - water systems. Small angle X-ray scattering (SAXS) was used to identify and characterize the liquid crystal phases. Cyclic octamethylcyclotetrasiloxane (D4), decamethyl-cyclopentasiloxane(D5) and short linear decamethyltetrasiloxane (MD2M) silicone oils facilitate the formation of liquid crystals. The structures in liquid crystals (LC) progress from zero curvature lamellar liquid crystals to higher curvature cubic liquid crystals with increasing the surfactant hydrophilic head group size. The effects of surfactant and oil concentration on the lamellar bilayer thickness and molecular packing were studied with small angle X-ray scattering.

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Ultra-short helix pitch and spiral ordering in cholesteric liquid crystal revealed by resonant soft X-ray scattering

Soft Matter ◽

10.1039/d1sm01543e ◽

2021 ◽

Author(s):

Alevtina Smekhova ◽

Vladimira Novotna ◽

Ladislav Fekete ◽

Radu Abrudan ◽

Mattis Fondell ◽

...

Keyword(s):

Liquid Crystal ◽

Liquid Crystals ◽

Cholesteric Liquid Crystal ◽

X Ray ◽

Practical Applications ◽

Spontaneous Formation ◽

X Ray Scattering ◽

Helix Pitch ◽

Chiral Structures ◽

Characteristic Features

The spontaneous formation of chiral structures offers a variety of liquid crystals (LC) phases that could be further tailored for practical applications. In our work, the characteristic features of spiral...

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