Synthesis and photoresponsive behavior of a liquid-crystalline polymer with a 4-ring azotolane moiety with huge birefringence

Kunihiko Okano; Atsushi Shishido; Tomiki Ikeda

doi:10.1080/15421400701680911

Synthesis and photoresponsive behavior of a liquid-crystalline polymer with a 4-ring azotolane moiety with huge birefringence

Kunihiko Okano, Atsushi Shishido, Tomiki Ikeda

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A novel liquid-crystalline polymer (LCP) containing an azobenzene group directly connected to a tolane moiety (azotolane moiety) was synthesized. The LCP showed a nematic phase in a broad temperature range (200C). Trans-cis photoisomerization and cis-trans thermal isomerization occurred even though the LCP contains a long azotolane moiety. The homogeneously aligned film of the LCP exhibited an extremely large value of n (0.70 at 633nm). Upon irradiation with a pumping beam in the LC phase, a large change in n was induced due to destruction of the homogeneous alignment of the azotolane moieties.

Original language	English
Pages (from-to)	259/[1015]-269/[1025]
Journal	Molecular Crystals and Liquid Crystals
Volume	478
Issue number	1
DOIs	https://doi.org/10.1080/15421400701680911
Publication status	Published - 2007 Jan

Keywords

Azotolane liquid-crystalline polymer
Change in birefringence
High birefringence
Photoisomerization

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1080/15421400701680911

Cite this

@article{482e06ba6ccb455fa525605158587bac,

title = "Synthesis and photoresponsive behavior of a liquid-crystalline polymer with a 4-ring azotolane moiety with huge birefringence",

abstract = "A novel liquid-crystalline polymer (LCP) containing an azobenzene group directly connected to a tolane moiety (azotolane moiety) was synthesized. The LCP showed a nematic phase in a broad temperature range (200C). Trans-cis photoisomerization and cis-trans thermal isomerization occurred even though the LCP contains a long azotolane moiety. The homogeneously aligned film of the LCP exhibited an extremely large value of n (0.70 at 633nm). Upon irradiation with a pumping beam in the LC phase, a large change in n was induced due to destruction of the homogeneous alignment of the azotolane moieties.",

keywords = "Azotolane liquid-crystalline polymer, Change in birefringence, High birefringence, Photoisomerization",

author = "Kunihiko Okano and Atsushi Shishido and Tomiki Ikeda",

year = "2007",

month = jan,

doi = "10.1080/15421400701680911",

language = "English",

volume = "478",

pages = "259/[1015]--269/[1025]",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor and Francis Ltd.",

number = "1",

}

TY - JOUR

T1 - Synthesis and photoresponsive behavior of a liquid-crystalline polymer with a 4-ring azotolane moiety with huge birefringence

AU - Okano, Kunihiko

AU - Shishido, Atsushi

AU - Ikeda, Tomiki

PY - 2007/1

Y1 - 2007/1

N2 - A novel liquid-crystalline polymer (LCP) containing an azobenzene group directly connected to a tolane moiety (azotolane moiety) was synthesized. The LCP showed a nematic phase in a broad temperature range (200C). Trans-cis photoisomerization and cis-trans thermal isomerization occurred even though the LCP contains a long azotolane moiety. The homogeneously aligned film of the LCP exhibited an extremely large value of n (0.70 at 633nm). Upon irradiation with a pumping beam in the LC phase, a large change in n was induced due to destruction of the homogeneous alignment of the azotolane moieties.

AB - A novel liquid-crystalline polymer (LCP) containing an azobenzene group directly connected to a tolane moiety (azotolane moiety) was synthesized. The LCP showed a nematic phase in a broad temperature range (200C). Trans-cis photoisomerization and cis-trans thermal isomerization occurred even though the LCP contains a long azotolane moiety. The homogeneously aligned film of the LCP exhibited an extremely large value of n (0.70 at 633nm). Upon irradiation with a pumping beam in the LC phase, a large change in n was induced due to destruction of the homogeneous alignment of the azotolane moieties.

KW - Azotolane liquid-crystalline polymer

KW - Change in birefringence

KW - High birefringence

KW - Photoisomerization

UR - http://www.scopus.com/inward/record.url?scp=38849178253&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38849178253&partnerID=8YFLogxK

U2 - 10.1080/15421400701680911

DO - 10.1080/15421400701680911

M3 - Article

AN - SCOPUS:38849178253

SN - 1542-1406

VL - 478

SP - 259/[1015]-269/[1025]

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

IS - 1

ER -

Synthesis and photoresponsive behavior of a liquid-crystalline polymer with a 4-ring azotolane moiety with huge birefringence

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this