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Effect of Polymer Networks on the smectic-C* Phase of a Ferroelectric Liquid Crystal: High-Resolution X-Ray Studies

Effect of Polymer Networks on the smectic-C* Phase of a Ferroelectric Liquid Crystal: High-Resolution X-Ray Studies

Upindranath Singh

Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jun;83(6 Pt 1):061707.

PMID: 21797387

Abstract:

High-resolution x-ray diffraction was used to investigate how polymer networks affect the tilt angle in the smectic-C* (SmC*) phase of the ferroelectric liquid crystal 4-[(S,S)-2,3-epoxyhexyloxy]-phenyl-4-(decyloxy)-benzoate (W46 or EPHDBPE). Blends comprising W46, a monomer, and a photoinitiator were prepared and photopolymerized at temperatures that correspond to isotropic and the SmC* phases of W46. When compared to the pure material, the tilt in the SmC* phase was found to decrease in both polymerized samples. The effect, however, is greater for the sample that was polymerized while it was in the SmC* phase. Also, the SmA*-SmC* transition in pure W46 is a weak first-order transition that becomes continuous if traces of polymer are added to W46.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP107133346	4-[(S,S)-2,3-Epoxyhexyloxy]phenyl 4-(decyloxy)benzoate		107133-34-6	Price

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