Thermally stable photo-crosslinking polymers bearing cinnamate groups for liquid crystal alignment

Oh Hyun Sung; Seung Hyun Cho; Whan Gun Kim; Ki Gook Song; Sang Hyon Paek; Jun Young Lee

doi:10.1002/masy.200750305

Thermally stable photo-crosslinking polymers bearing cinnamate groups for liquid crystal alignment

Oh Hyun Sung
, Seung Hyun Cho
, Whan Gun Kim
, Ki Gook Song
, Sang Hyon Paek
, Jun Young Lee

Department of Chemical Engineering

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

2 Scopus citations

Abstract

Optically ansiotropic photo-crosslinking polymers were synthesized through reaction between different kinds of epoxy resins and cinnamic acids. Optical anisotropy of the polymer film exposed to linearly polarized UV light (LPUVL) was confirmed from the polarized UV-Visible spectra. The polymer films irradiated by LPUVL showed anisotropic absorbance in the polarized UV-Visible spectra, while the polymer irradiated by unpolarized UV exhibited isotropic absorbance. It was also confirmed that the polymer film exposed to LPUVL could align liquid crystals (LC). LC cell fabricated using the polymer films irradiated by LPUVL showed the anisotropic polar diagram, implying that the polymer films may be applied as the photoalignment layer for LC display.

Original language	English
Pages (from-to)	29-34
Number of pages	6
Journal	Macromolecular Symposia
Volume	249-250
DOIs	https://doi.org/10.1002/masy.200750305
State	Published - 2007

Keywords

Cinnamate group
Epoxy
Optical anisotropy
Photoalignment layer
Photoreactive polymer

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10.1002/masy.200750305

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title = "Thermally stable photo-crosslinking polymers bearing cinnamate groups for liquid crystal alignment",

abstract = "Optically ansiotropic photo-crosslinking polymers were synthesized through reaction between different kinds of epoxy resins and cinnamic acids. Optical anisotropy of the polymer film exposed to linearly polarized UV light (LPUVL) was confirmed from the polarized UV-Visible spectra. The polymer films irradiated by LPUVL showed anisotropic absorbance in the polarized UV-Visible spectra, while the polymer irradiated by unpolarized UV exhibited isotropic absorbance. It was also confirmed that the polymer film exposed to LPUVL could align liquid crystals (LC). LC cell fabricated using the polymer films irradiated by LPUVL showed the anisotropic polar diagram, implying that the polymer films may be applied as the photoalignment layer for LC display.",

keywords = "Cinnamate group, Epoxy, Optical anisotropy, Photoalignment layer, Photoreactive polymer",

author = "Sung, \{Oh Hyun\} and Cho, \{Seung Hyun\} and Kim, \{Whan Gun\} and Song, \{Ki Gook\} and Paek, \{Sang Hyon\} and Lee, \{Jun Young\}",

year = "2007",

doi = "10.1002/masy.200750305",

language = "English",

volume = "249-250",

pages = "29--34",

journal = "Macromolecular Symposia",

issn = "1022-1360",

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TY - JOUR

T1 - Thermally stable photo-crosslinking polymers bearing cinnamate groups for liquid crystal alignment

AU - Sung, Oh Hyun

AU - Cho, Seung Hyun

AU - Kim, Whan Gun

AU - Song, Ki Gook

AU - Paek, Sang Hyon

AU - Lee, Jun Young

PY - 2007

Y1 - 2007

N2 - Optically ansiotropic photo-crosslinking polymers were synthesized through reaction between different kinds of epoxy resins and cinnamic acids. Optical anisotropy of the polymer film exposed to linearly polarized UV light (LPUVL) was confirmed from the polarized UV-Visible spectra. The polymer films irradiated by LPUVL showed anisotropic absorbance in the polarized UV-Visible spectra, while the polymer irradiated by unpolarized UV exhibited isotropic absorbance. It was also confirmed that the polymer film exposed to LPUVL could align liquid crystals (LC). LC cell fabricated using the polymer films irradiated by LPUVL showed the anisotropic polar diagram, implying that the polymer films may be applied as the photoalignment layer for LC display.

AB - Optically ansiotropic photo-crosslinking polymers were synthesized through reaction between different kinds of epoxy resins and cinnamic acids. Optical anisotropy of the polymer film exposed to linearly polarized UV light (LPUVL) was confirmed from the polarized UV-Visible spectra. The polymer films irradiated by LPUVL showed anisotropic absorbance in the polarized UV-Visible spectra, while the polymer irradiated by unpolarized UV exhibited isotropic absorbance. It was also confirmed that the polymer film exposed to LPUVL could align liquid crystals (LC). LC cell fabricated using the polymer films irradiated by LPUVL showed the anisotropic polar diagram, implying that the polymer films may be applied as the photoalignment layer for LC display.

KW - Cinnamate group

KW - Epoxy

KW - Optical anisotropy

KW - Photoalignment layer

KW - Photoreactive polymer

UR - https://www.scopus.com/pages/publications/34547146403

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DO - 10.1002/masy.200750305

M3 - Article

AN - SCOPUS:34547146403

SN - 1022-1360

VL - 249-250

SP - 29

EP - 34

JO - Macromolecular Symposia

JF - Macromolecular Symposia

ER -

Thermally stable photo-crosslinking polymers bearing cinnamate groups for liquid crystal alignment

Abstract

Keywords

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