Macromolecular Chemistry and Physics, volume 218, issue 16, pages 1700127
Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length
Bobrovsky Alexey
1
,
Shibaev Valery
1
,
Piryazev Alexey
2
,
Anokhin Denis V.
2, 3
,
Ivanov Dimitri A.
2, 4
,
Sinitsyna Olga
1
,
Hamplová Věra
5
,
Kašpar Miroslav
5
,
Bubnov Alexej
5
4
Institut de Sciences des Matériaux de Mulhouse; CNRS UMR 7361, Jean Starcky 15 F-68057 Mulhouse France
|
5
Institute of Physics; The Czech Academy of Sciences; 182 21 Prague 8 Czech Republic
|
Publication type: Journal Article
Publication date: 2017-05-23
Journal:
Macromolecular Chemistry and Physics
Quartile SCImago
Q2
Quartile WOS
Q3
Impact factor: 2.5
ISSN: 10221352, 15213935
Materials Chemistry
Organic Chemistry
Physical and Theoretical Chemistry
Condensed Matter Physics
Polymers and Plastics
Abstract
ynthesis and investigation of the phase behavior and photo-optical properties of two chiral liquid-crystalline polymers with azobenzene-containing side groups having different spacer lengths, 6 and 10 methylene groups (PMAzo-6 and PMAzo-10, respectively) are described. Formation of different smectic phases and high-temperature cholesteric phase is studied by polarizing optical microscope, differential scanning calorimetry, and X-ray investigations. It is shown that UV-irradiation induces effective reversible E–Z photoisomerization in polymer solutions and films. Atomic force microscopy (AFM) study reveals substantial changes in the surface topography of the polymer PMAzo-6 film after UV-irradiation, whereas PMAzo-10 surface remains the same. Irradiation by polarized light (457 nm) results in photo-orientation process in polymer films consequential in significant alignment of the chromophores in direction perpendicular to the polarization plane of the incident light. A significant difference is found in thermal stability of the photoinduced alignment; an annealing of PMAzo-10 irradiated samples results in a slight decrease of dichroism values (down to 0.57); whereas the dichroism increases up to very high values (0.91) for PMAzo-6.
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Wiley
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Wiley
1 publication, 4.35%
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Proceedings of the National Academy of Sciences (PNAS)
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Proceedings of the National Academy of Sciences (PNAS)
1 publication, 4.35%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Bobrovsky A. et al. Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length // Macromolecular Chemistry and Physics. 2017. Vol. 218. No. 16. p. 1700127.
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Bobrovsky A., Shibaev V., Piryazev A., Anokhin D. V., Ivanov D. A., Sinitsyna O., Hamplová V., Kašpar M., Bubnov A. Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length // Macromolecular Chemistry and Physics. 2017. Vol. 218. No. 16. p. 1700127.
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TY - JOUR
DO - 10.1002/macp.201700127
UR - https://doi.org/10.1002%2Fmacp.201700127
TI - Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length
T2 - Macromolecular Chemistry and Physics
AU - Piryazev, Alexey
AU - Ivanov, Dimitri A.
AU - Bobrovsky, Alexey
AU - Shibaev, Valery
AU - Anokhin, Denis V.
AU - Sinitsyna, Olga
AU - Hamplová, Věra
AU - Kašpar, Miroslav
AU - Bubnov, Alexej
PY - 2017
DA - 2017/05/23 00:00:00
PB - Wiley
SP - 1700127
IS - 16
VL - 218
SN - 1022-1352
SN - 1521-3935
ER -
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@article{2017_Bobrovsky,
author = {Alexey Piryazev and Dimitri A. Ivanov and Alexey Bobrovsky and Valery Shibaev and Denis V. Anokhin and Olga Sinitsyna and Věra Hamplová and Miroslav Kašpar and Alexej Bubnov},
title = {Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length},
journal = {Macromolecular Chemistry and Physics},
year = {2017},
volume = {218},
publisher = {Wiley},
month = {may},
url = {https://doi.org/10.1002%2Fmacp.201700127},
number = {16},
pages = {1700127},
doi = {10.1002/macp.201700127}
}
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MLA
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Bobrovsky, Alexey, et al. “Photo-Orientation Phenomena in Photochromic Liquid Crystalline Azobenzene-Containing Polymethacrylates with Different Spacer Length.” Macromolecular Chemistry and Physics, vol. 218, no. 16, May. 2017, p. 1700127. https://doi.org/10.1002%2Fmacp.201700127.
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