Dielectric studies of a chiral fluorinated organosiloxane liquid crystal

Abraham K. George; Carlo Carboni; Wajdi Michael Zoghaib

doi:10.1080/15421406.2017.1283921

Dielectric studies of a chiral fluorinated organosiloxane liquid crystal

Abraham K. George^*, Carlo Carboni, Wajdi Michael Zoghaib

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The material (LC#11) we are reporting in this communication is a chiral fluorinated organosiloxane liquid crystal which has a long chain hydrocarbon head and ending with a straight trisiloxane terminus. Polarized optical microscopic studies revealed that the material exhibits S_C, S_A phases along with a co-existent biphasic region. The material responds to electric field; at low temperature the response is slow. Tilt angle measurements as a function of temperature are carried out using optical extinction method. Low frequency dielectric studies are carried out using Wayne Kerr precision impedance analyzer.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Molecular Crystals and Liquid Crystals
Volume	646
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2017.1283921
Publication status	Published - Mar 24 2017

Keywords

dielectric studies
Organosiloxane liquid crystal
response time
tilt angle

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/15421406.2017.1283921

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AU - Carboni, Carlo

AU - Zoghaib, Wajdi Michael

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N2 - The material (LC#11) we are reporting in this communication is a chiral fluorinated organosiloxane liquid crystal which has a long chain hydrocarbon head and ending with a straight trisiloxane terminus. Polarized optical microscopic studies revealed that the material exhibits SC, SA phases along with a co-existent biphasic region. The material responds to electric field; at low temperature the response is slow. Tilt angle measurements as a function of temperature are carried out using optical extinction method. Low frequency dielectric studies are carried out using Wayne Kerr precision impedance analyzer.

AB - The material (LC#11) we are reporting in this communication is a chiral fluorinated organosiloxane liquid crystal which has a long chain hydrocarbon head and ending with a straight trisiloxane terminus. Polarized optical microscopic studies revealed that the material exhibits SC, SA phases along with a co-existent biphasic region. The material responds to electric field; at low temperature the response is slow. Tilt angle measurements as a function of temperature are carried out using optical extinction method. Low frequency dielectric studies are carried out using Wayne Kerr precision impedance analyzer.

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KW - Organosiloxane liquid crystal

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KW - tilt angle

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Dielectric studies of a chiral fluorinated organosiloxane liquid crystal

Abstract

Keywords

ASJC Scopus subject areas

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