Journal of Photochemistry and Photobiology A: Chemistry, volume 206, issue 1, pages 46-52

Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems

Bobrovsky Alexey ¹

Ryabchun Alexander ¹

Medvedev Alexey ¹

Shibaev Valery ¹

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Chemistry Department, Moscow State University, Leninskie Gory, Moscow 119991, Russia. |

Publication type: Journal Article

Publication date: 2009-07-01

Elsevier

Journal: Journal of Photochemistry and Photobiology A: Chemistry

Quartile SCImago

Quartile WOS

Impact factor: 4.3

ISSN: 10106030, 18732666

DOI: 10.1016/j.jphotochem.2009.05.010

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General Chemistry

General Chemical Engineering

General Physics and Astronomy

Abstract

The processes of mesogen ordering in nematic and cholesteric side-chain polymer systems were studied by polarized optical spectroscopy. For this purpose, nematic azobenzene-containing copolyacrylate was synthesized and its cholesteric mixture with chiral dopant was prepared. Thin films of copolymer and mixture were prepared by spin-coating using polyimide-coated and rubbed glass and quartz substrates. Film thickness was comparable or less than helix pitch value. It was found that azobenzene and phenylbenzoate side groups of nematic copolymer are oriented after annealing along a rubbing direction. Cholesteric mixture demonstrates a more complicated behaviour, the direction of orientation of the side-chain groups is rotated at certain angle depending on the film thickness. Dichroism in azobenzene groups’ absorbance is lower for cholesteric mixture and decreases with film thickness increasing. A possible mechanism of ordering of the side-chain groups in these thin films was proposed based on the helical order formation. Photooptical switching of the orientation and an influence of the nonpolarized and polarized light on the cholesteric thin films were studied demonstrating a possibility of using such thin films of photochromic cholesterics as promising photoswitchable materials.

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Citations by journals

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Advanced Optical Materials	Advanced Optical Materials, 3, 12.5% Advanced Optical Materials 3 publications, 12.5%
Journal of Polymer Science, Part B: Polymer Physics	Journal of Polymer Science, Part B: Polymer Physics, 3, 12.5% Journal of Polymer Science, Part B: Polymer Physics 3 publications, 12.5%
Journal of Physical Chemistry B	Journal of Physical Chemistry B, 2, 8.33% Journal of Physical Chemistry B 2 publications, 8.33%
Journal of Photochemistry and Photobiology A: Chemistry	Journal of Photochemistry and Photobiology A: Chemistry, 1, 4.17% Journal of Photochemistry and Photobiology A: Chemistry 1 publication, 4.17%
Journal of Polymer Science, Part A: Polymer Chemistry	Journal of Polymer Science, Part A: Polymer Chemistry, 1, 4.17% Journal of Polymer Science, Part A: Polymer Chemistry 1 publication, 4.17%
Physical Chemistry Chemical Physics	Physical Chemistry Chemical Physics, 1, 4.17% Physical Chemistry Chemical Physics 1 publication, 4.17%
ACS Photonics	ACS Photonics, 1, 4.17% ACS Photonics 1 publication, 4.17%
Physical Review E	Physical Review E, 1, 4.17% Physical Review E 1 publication, 4.17%
Polymer Science - Series A	Polymer Science - Series A, 1, 4.17% Polymer Science - Series A 1 publication, 4.17%
ACS Applied Polymer Materials	ACS Applied Polymer Materials, 1, 4.17% ACS Applied Polymer Materials 1 publication, 4.17%
International Journal of Molecular Sciences	International Journal of Molecular Sciences, 1, 4.17% International Journal of Molecular Sciences 1 publication, 4.17%
Optics and Laser Technology	Optics and Laser Technology, 1, 4.17% Optics and Laser Technology 1 publication, 4.17%
Optics and Lasers in Engineering	Optics and Lasers in Engineering, 1, 4.17% Optics and Lasers in Engineering 1 publication, 4.17%
Langmuir	Langmuir, 1, 4.17% Langmuir 1 publication, 4.17%
Journal of Physical Chemistry Letters	Journal of Physical Chemistry Letters, 1, 4.17% Journal of Physical Chemistry Letters 1 publication, 4.17%
ACS applied materials & interfaces	ACS applied materials & interfaces, 1, 4.17% ACS applied materials & interfaces 1 publication, 4.17%
Journal of Physical Chemistry C	Journal of Physical Chemistry C, 1, 4.17% Journal of Physical Chemistry C 1 publication, 4.17%
Russian Journal of Physical Chemistry A	Russian Journal of Physical Chemistry A, 1, 4.17% Russian Journal of Physical Chemistry A 1 publication, 4.17%
Journal of Modern Physics	Journal of Modern Physics, 1, 4.17% Journal of Modern Physics 1 publication, 4.17%
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Citations by publishers

	1 2 3 4 5 6 7 8
American Chemical Society (ACS)	American Chemical Society (ACS), 8, 33.33% American Chemical Society (ACS) 8 publications, 33.33%
Wiley	Wiley, 7, 29.17% Wiley 7 publications, 29.17%
Elsevier	Elsevier, 3, 12.5% Elsevier 3 publications, 12.5%
Pleiades Publishing	Pleiades Publishing, 2, 8.33% Pleiades Publishing 2 publications, 8.33%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 1, 4.17% Royal Society of Chemistry (RSC) 1 publication, 4.17%
American Physical Society (APS)	American Physical Society (APS), 1, 4.17% American Physical Society (APS) 1 publication, 4.17%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 1, 4.17% Multidisciplinary Digital Publishing Institute (MDPI) 1 publication, 4.17%
Scientific Research Publishing	Scientific Research Publishing, 1, 4.17% Scientific Research Publishing 1 publication, 4.17%
	1 2 3 4 5 6 7 8

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Bobrovsky A. et al. Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems // Journal of Photochemistry and Photobiology A: Chemistry. 2009. Vol. 206. No. 1. pp. 46-52.

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Bobrovsky A., Ryabchun A., Medvedev A., Shibaev V. Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems // Journal of Photochemistry and Photobiology A: Chemistry. 2009. Vol. 206. No. 1. pp. 46-52.

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TY - JOUR

DO - 10.1016/j.jphotochem.2009.05.010

UR - https://doi.org/10.1016%2Fj.jphotochem.2009.05.010

TI - Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems

T2 - Journal of Photochemistry and Photobiology A: Chemistry

AU - Bobrovsky, Alexey

AU - Ryabchun, Alexander

AU - Medvedev, Alexey

AU - Shibaev, Valery

PY - 2009

DA - 2009/07/01 00:00:00

PB - Elsevier

SP - 46-52

IS - 1

VL - 206

SN - 1010-6030

SN - 1873-2666

ER -

BibTex |

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BibTex Copy

@article{2009_Bobrovsky,

author = {Alexey Bobrovsky and Alexander Ryabchun and Alexey Medvedev and Valery Shibaev},

title = {Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems},

journal = {Journal of Photochemistry and Photobiology A: Chemistry},

year = {2009},

volume = {206},

publisher = {Elsevier},

month = {jul},

url = {https://doi.org/10.1016%2Fj.jphotochem.2009.05.010},

number = {1},

pages = {46--52},

doi = {10.1016/j.jphotochem.2009.05.010}

}

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Bobrovsky, Alexey, et al. “Ordering phenomena and photoorientation processes in photochromic thin films of LC chiral azobenzene-containing polymer systems.” Journal of Photochemistry and Photobiology A: Chemistry, vol. 206, no. 1, Jul. 2009, pp. 46-52. https://doi.org/10.1016%2Fj.jphotochem.2009.05.010.

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Publisher

Elsevier

Journal

Journal of Photochemistry and Photobiology A: Chemistry

Quartile SCImago

Quartile WOS

Impact factor

4.3

ISSN

10106030 (Print)
18732666 (Electronic)

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