Liquid crystal alignment behavior on sulfonated poly(arylene ether sulfone) films

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64031-64036 ◽  
Author(s):  
Hyo Kang ◽  
Kihyun Kim ◽  
Daeseung Kang ◽  
Jong-Chan Lee
Keyword(s):  
Liquid Crystal ◽  
Polymer Films ◽  
Liquid Crystal Alignment ◽  
Monomer Ratio ◽  
Arylene Ether ◽  
Crystal Alignment ◽  
Sulfonated Poly

A series of sulfonated poly(arylene ether sulfone) (PAES#, # is the feed monomer ratio of 3,3′-disulfonate-4,4′-dichlorodiphenylsulfone) derivatives were synthesized to investigate the liquid crystal (LC) alignment property of these polymer films.

scholarly journals Dual liquid crystal alignment configuration based on nanoparticle-doped polymer films

2011 ◽  
Vol 19 (12) ◽  
pp. 11825 ◽  
Author(s):  
Andy Ying-Guey Fuh ◽  
Chen-Yu Huang ◽  
Cheng-Kai Liu ◽  
Yuan-Di Chen ◽  
Ko-Ting Cheng
Keyword(s):  
Liquid Crystal ◽  
Polymer Films ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment ◽  
Doped Polymer

scholarly journals Effect of Position and Structure of the Terminal Moieties in the Side Group on the Liquid Crystal Alignment Behavior of Polystyrene Derivatives

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2822
Author(s):  
DaEun Yang ◽  
Kyutae Seo ◽  
Hyo Kang
Keyword(s):  
Liquid Crystal ◽  
Surface Energy ◽  
Polymer Films ◽  
Side Group ◽  
Polymer Modification ◽  
Liquid Crystal Alignment ◽  
Tert Butyl ◽  
Tertiary Carbon ◽  
Phenyl Rings ◽  
Crystal Alignment

We synthesized a series of polystyrene derivatives containing various side groups, such as the 4-(tert-butyl)-phenoxymethyl, 3-(tert-butyl)-phenoxymethyl, 2-(tert-butyl)-phenoxymethyl, 4-cumyl-phenoxymethyl, and 4-trityl-phenoxymethyl groups, through a polymer modification reaction to examine the liquid crystal (LC) alignment of these derivatives. In general, the vertical LC alignment on polymer films can be affected by the position and structure of the terminal moiety of the polymer side group. For example, the LC cells fabricated with 4-(tert-butyl)-phenoxymethyl-substituted polystyrene having a tert-butyl moiety as a para-type attachment to the phenoxy groups of the polystyrene derivatives exhibited vertical LC alignment, whereas the LC cells prepared from 3-(tert-butyl)- and 2-(tert-butyl)-phenoxymethyl-substituted polystyrene films exhibited planar LC alignment. In addition, the LC cells fabricated from 4-cumyl- and 4-trityl-phenoxymethyl-substituted polystyrene films with additional phenyl rings in the side groups exhibited planar LC alignment, in contrast to the LC alignment of the (tert-butyl)-phenoxymethyl-substituted polystyrene series. The vertical LC orientation was well correlated with the surface energy of these polymer films. For example, vertical LC orientation, which mainly originates due to the nonpolar tertiary carbon moiety having bulky groups, was observed when the surface energy of the polymer was lower than 36.6 mJ/m2.

Electrically Aligned Photo-Polymer Films for Liquid Crystal Alignment

1999 ◽  
Vol 329 (1) ◽  
pp. 441-446 ◽  
Author(s):  
Mee Whi Kima ◽  
Abbas Rastegar ◽  
Irena Drevensek Olenik ◽  
Pieter De Witte ◽  
Mahn Won Kim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Polymer Films ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

The effect of rubbed polymer films on the liquid crystal alignment

1989 ◽  
Vol 4 (6) ◽  
pp. 669-675 ◽  
Author(s):  
Shoichi Ishihara ◽  
Hirofumi Wakemoto ◽  
Keizo Nakazima ◽  
Yoshihiro Matsuo
Keyword(s):  
Liquid Crystal ◽  
Polymer Films ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

Liquid Crystal Alignment on Polymer Films

1998 ◽  
Vol 325 (1) ◽  
pp. 51-62
Author(s):  
Ruibo Lu ◽  
Keshu Xu ◽  
Sheng'an Xiao ◽  
Yongkang Le ◽  
Xuewu Zhou ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Polymer Films ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment
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