The Influence of Alkyl Spacer on Helical Structure of Polymer-Stabilized Ferroelectric Liquid Crystals

2009 ◽  
Vol 509 (1) ◽  
pp. 356/[1098]-362/[1104]
Author(s):  
Nozomi Higuchi ◽  
Kentaro Okazoe ◽  
Hirokazu Furue
2013 ◽  
Vol 634-638 ◽  
pp. 2523-2526
Author(s):  
Hui Chang ◽  
Wen Juan Fan ◽  
Xiao Li Liu ◽  
Hong Ying Huo

The polymer stabilized liquid crystals (PSLC) films was prepared subsequently based on the mesogenic diacrylate monomer 4,4’-bis[6-(acryloyloxy)-hexyloxy]biphenyl (BAB6). The effects of BAB6 on the morphology of polymer network as well as the electro-optical properties of the PSLC films were investigated. The helical structure of liquid crystals was observed in the morphology of polymer network by SEM. Further, a single switching process was observed at lower monomer concentration in this study compared with the former publication. When BAB6 concentration reached 7 %, the response time and contrast ratio of PSLC film were 7 ms and 16.8, respectively.


MRS Bulletin ◽  
1997 ◽  
Vol 22 (9) ◽  
pp. 15-20 ◽  
Author(s):  
Christopher N. Bowman ◽  
C. Allan Guymon

The following is based on the presentation made by Christopher N. Bowman, recipient of the MRS Outstanding Investigator Award, at the 1997 MRS Spring Meeting.I would like to focus on our recent work involving photopolymerizations of monomers in a liquid-crystalline environment. This work is one of the many aspects of photopolymerizations that we are focusing on at the University of Colorado. In particular this effort concentrates on understanding the influence of a liquid-crystalline medium and monomer segregation on polymerization behavior and polymer structure. These studies are of considerable importance for polymer-stabilized ferroelectric liquid crystals (FLCs) because of the enormous potential impact on the area.I will briefly introduce liquid crystals (LCs), FLCs, and photopolymerizations. I will then discuss the observed electrooptic properties and how these properties change as the LC phase during polymerization is varied. Finally I will address how polymerization kinetics are affected by the LC phase and monomer segregation. This discussion will include results from x-ray diffraction, polarized infrared spectroscopy, and differential scanning calorimetry experiments.


2008 ◽  
Vol 364 (1) ◽  
pp. 78-85 ◽  
Author(s):  
Toru Fujisawa ◽  
Isa Nishiyama ◽  
Kazuaki Hatsusaka ◽  
Kiyofumi Takeuchi ◽  
Haruyoshi Takatsu ◽  
...  

2008 ◽  
Vol 364 (1) ◽  
pp. 113-120 ◽  
Author(s):  
Takayuki Inoue ◽  
Nozomi Higuchi ◽  
Hirokazu Furue

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