Spontaneous homeotropic alignment of nematic liquid crystals induced by a double-armed side chain liquid crystalline polymethacrylate

A liquid crystalline polymethacrylate having two cyclohexylphenyl mesogens on its side-chain (PMG0) was synthesized by the radical polymerization of the corresponding methacrylate monomer (MG0). PMG0 exhibited a smectic A phase around room temperature showing a focalconic fan texture in POM observat...

Full description

Saved in:
Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2017-10, Vol.656 (1), p.96-104
Main Authors: Haba, Osamu, Matsuno, Wataru, Nakamura, Nao, Awano, Hiroshi, Takahashi, Tatsuhiro, Yonetake, Koichiro, Momoi, Yuichi
Format: Article
Language:English
Subjects:
Alignment
Chemical synthesis
Crystal structure
Crystallinity
Crystals
Dendronized polymer
Diffusion rate
homeotropic alignment
liquid crystal
Liquid crystals
Nematic crystals
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A liquid crystalline polymethacrylate having two cyclohexylphenyl mesogens on its side-chain (PMG0) was synthesized by the radical polymerization of the corresponding methacrylate monomer (MG0). PMG0 exhibited a smectic A phase around room temperature showing a focalconic fan texture in POM observations and a broad diffusion in a wide angle range of its WAXD profile. Upon slow cooling at −1 °C min −1 from the isotropic melt, PMG0 exhibited spontaneous homeotropic alignment between two native glass surfaces. A mixture of the commercial nematic liquid crystal (ZLI-4792) containing 1.0 wt% PMG0 also exhibited a homeotropic alignment, which easily covered hydrophilic surfaces such as glass or polyacrylamide.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2017.1408989