Gutenberg Open Science: Influences of ortho-fluoroazobenzenes on liquid crystalline phase stability and 2D (planar) actuation properties of liquid crystalline elastomers

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-7057

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DC Field	Value	Language
dc.contributor.author	Ditter, David	-
dc.contributor.author	Braun, Lukas B.	-
dc.contributor.author	Zentel, Rudolf	-
dc.date.accessioned	2022-05-31T10:35:06Z	-
dc.date.available	2022-05-31T10:35:06Z	-
dc.date.issued	2020	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/7071	-
dc.description.abstract	In this article, the influences of ortho-fluoroazobenzenes (o-Fbs) on liquid crystalline (LC) phase stability and actuation properties of liquid crystalline elastomers (LCEs) are presented. Such o-Fbs find interest because they allow full photoswitching with visible light (no ultraviolet (UV) radiation). Novel o-Fb monomers and crosslinkers are synthesized and characterized. Different amounts of an LC mixture are replaced with synthesized o-Fbs successively and their influences on the LC phase stability in the cis and trans forms are observed through measuring the related clearing temperatures via polarized optical microscopy. LCE precursors containing 0, 1, 3, 5, 7, and 10 mol% o-Fb monomer or crosslinker are aligned in a magnetic field and polymerized as films in the LC phase. Thermal and visible light–controlled photochemical 2D (planar) actuation properties of LCE samples are investigated and compared to LCEs containing a liquid crystalline non-fluorinated azobenzene monomer as reference. It is shown that, while the favorable photochemistry is obtained, the integration of o-Fbs is less effective for photoswitching of the LC phase, because i) less o-Fbs can be integrated without destroying the LC phase and ii) the trans–cis isomerization is less effective in destroying the LC phase.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY-ND	*
dc.rights.uri	https://creativecommons.org/licenses/by-nd/4.0/	*
dc.subject.ddc	540 Chemie	de_DE
dc.subject.ddc	540 Chemistry and allied sciences	en_GB
dc.title	Influences of ortho-fluoroazobenzenes on liquid crystalline phase stability and 2D (planar) actuation properties of liquid crystalline elastomers	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-7057	-
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 09 Chemie, Pharmazie u. Geowissensch.	de
jgu.organisation.number	7950	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Macromolecular chemistry and physics	de
jgu.journal.volume	221	de
jgu.journal.issue	1	de
jgu.pages.alternative	1900265	de
jgu.publisher.year	2020	-
jgu.publisher.name	Wiley-VCH	de
jgu.publisher.place	Weinheim	de
jgu.publisher.issn	1521-3935	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	540	de
jgu.publisher.doi	10.1002/macp.201900265	de
jgu.organisation.ror	https://ror.org/023b0x485
Appears in collections:	JGU-Publikationen

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