Presentation 2000/3/3
Microscopic Study of Polymer Network Morphology Formed in Ferroelectric Liquid Crystal
Hideo FUJIKAKE, Takeshi MURASHIGE, Jun YONAI, Hiroto SATO, Hiroshi KIKUCHI, Yoshiki IINO, Masahiro KAWAKITA, Yuzuru TSUCHIYA, Kuniharu TAKIZAWA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The morphology of fine polymer network formed in ferroelectric liquid crystal was observed with an optical microscope and a scanning electron microscope, and its formation mechanism was studied for obtaining the rigid polymer network supporting substrates of the liquid crystal devices. It was found that the polymer made from mono-functional acrylate monomer by photopolymerization-induced phase separation forms a small fiber morphology with fibril aggregation, which is aligned in parallel to the liquid crystal molecular orientation controlled by alignment layers. The polymer fiber became stout with the increase of the monomer concentration. The self-assembling phenomenon is considered to be induced by the interfacial tension of liquid polymer component in polymerizing, and the transient morphology of polymer in phase separation process is rapidly fixed by the polymer curing. By forming the aligned polymer fiber network, the spatial grayscale capability was obtained due to the polydomain structure of liquid crystal, and high contrast ratios over 100:1 are achieved for each primary color because of good uniformity of ferroelectric liquid crystal alignment.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) polymer fiber network / fibril / ferroelectric liquid crystal / self-assembling process / photopolymerization-induced phase separation
Paper # EID99-170,OME99-129
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Committee OME
Conference Date 2000/3/3(1days)
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Registration To Organic Material Electronics (OME)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Microscopic Study of Polymer Network Morphology Formed in Ferroelectric Liquid Crystal
Sub Title (in English)
Keyword(1) polymer fiber network
Keyword(2) fibril
Keyword(3) ferroelectric liquid crystal
Keyword(4) self-assembling process
Keyword(5) photopolymerization-induced phase separation
1st Author's Name Hideo FUJIKAKE
1st Author's Affiliation NHK Science & Technical Research Laboratories()
2nd Author's Name Takeshi MURASHIGE
2nd Author's Affiliation / NHK Science & Technical Research Laboratories
3rd Author's Name Jun YONAI
3rd Author's Affiliation NHK Science & Technical Research Laboratories
4th Author's Name Hiroto SATO
4th Author's Affiliation NHK Science & Technical Research Laboratories
5th Author's Name Hiroshi KIKUCHI
5th Author's Affiliation NHK Science & Technical Research Laboratories
6th Author's Name Yoshiki IINO
6th Author's Affiliation NHK Science & Technical Research Laboratories
7th Author's Name Masahiro KAWAKITA
7th Author's Affiliation NHK Science & Technical Research Laboratories
8th Author's Name Yuzuru TSUCHIYA
8th Author's Affiliation NHK Science & Technical Research Laboratories
9th Author's Name Kuniharu TAKIZAWA
9th Author's Affiliation
Date 2000/3/3
Paper # EID99-170,OME99-129
Volume (vol) vol.99
Number (no) 664
Page pp.pp.-
#Pages 6
Date of Issue