Announcement for Downloading full text filePlease respect the Copyright Act.
All digital full text dissertation and theses from this website are authorized the copyright owners. These copyrighted full-text dissertation and theses can be only used for academic, research and non-commercial purposes. Users of this website can search, read, and print for personal usage. In respect of the Copyright Act of the Republic of China, please do not reproduce, distribute, change, or edit the content of these dissertations and theses without any permission. Please do not create any work based upon a pre-existing work by reproduction, Adaptation, Distribution or other means.
URN etd-0712104-153036 Statistics This thesis had been viewed 2505 times. Download 940 times. Author Hung-hsiang Huang Author's Email Address No Public. Department Chemical Engineering Year 2003 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 64 Title SYNTHESIS AND ELECTRO-OPTICAL PROPERTIES OF NEW CHIRAL LIQUID CRYSTAL DERIVED FROM (S)-2-(6-HYDROXY-2-NAPHTHYL)PROPIONIC ACID WITH METHYLENEOXY LINKING GROUP Keyword PROPIONIC CHIRAL LIQUID CHIRAL LIQUID PROPIONIC Abstract Three homologous series of chiral esters derived from (S)-2-(6-methoxy-2-naphthly)propionic acid with methyleneoxy linking group were synthesized. The correlation between the molecular structure and the ferroelectric liquid crystal (FLC) property has been investigated.Three series of chiral materials I(m=8~12), II(m=8~12), and III(m=8~12), displayed enantiotropic mesophases of the SmA* and SmC* phases. The clearing points for the three series decrease with increasing of the nonchiral terminal chain length ‘m’.
The maximum Ps values of I(m=10~12), II(m=10~12), and III(m=10~12) vary from 12.3 to 19.1nC/cm2.
Comparing the tilt angles of I(m=10), II(m=10), and III(m=10), the maximum tilt angle values were in the range of 25~30 degrees. There is a decreasing tendency of tilt angle as increasing chiral chain length.
Advisor Committee Shune-long Wu - advisor
Chin-tsou Kup - co-chair
Jiunn-yih Lee - co-chair
Liang-jye Yu - co-chair
Files Date of Defense 2004-06-09 Date of Submission 2004-07-12