Structures of Liquid-Crystalline Polyhedral Oligomeric Silsesquioxanes: A Monte Carlo Study
Date Issued
2004
Date
2004
Author(s)
Hsu, Chun-Chia
DOI
en-US
Abstract
Liquid crystalline phases have properties which are intermediate between those of the fully ordered crystalline solid and isotropic liquid. The most important applications of liquid crystals will remain in the area of displays for the near future. Polyhedral oligomeric silsesquioxane (POSS) has discrete molecular structure which can be used as molecular scaffolding for liquid crystal systems. The attachment of liquid-crystal moieties to POSS forms a promising element which bears great potential to explore novel ways of controlling self-organization in liquid crystals.
The structures of liquid-crystalline polyhedral oligomeric silsesquioxane (LC-POSS) are studied by continuous-space Monte Carlo simulations. Effects of temperature, volume fraction, number of side chain (arm number) and lengths of mesogen and spacer on the resulting mesomorphic properties are examined. The order parameter (S) and pair correlation functions in the directions parallel and perpendicular to the director, g//(r//) and g
Subjects
蒙地卡羅法
液晶
多面體寡聚倍半矽氧烷
結構
Monte Carlo
liqud crystalline
liquid crystal
structures
POSS
polyhedral oligomeric silsesquioxanes
Type
thesis
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