Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-3728
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dc.contributor.authorWeis, Philipp
dc.date.accessioned2019-08-02T10:05:35Z
dc.date.available2019-08-02T12:05:35Z
dc.date.issued2019
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/3730-
dc.description.abstractIn this thesis two properties of azopolymers are investigated. In the first part azopolymers with absorption in the visible range of the light spectrum are synthesized, characterized and possible applications of these polymers are illustrated. In the second part, the isothermal, photoinduced solid-to-liquid transition of azopolymers is investigated and associated to differences between the trans and cis forms of the azopolymers. For the preparation of an azopolymer with absorption in the visible light region, an azobenzene molecule, which absorbs visible light, is incorporated into a polymethacrylate backbone. For this purpose, a monomer based on a methacrylate and containing the just mentioned azobenzene molecule is synthesized first. The azobenzene molecule is linked to the methacrylate via six methylene groups. In the following, solid state properties and light switching in polymer films are investigated and the advantages of the new polymer will be demonstrated by comparison with a conventional azopolymer. Based on these properties, information storage and solar energy storage are shown as possible applications. The thermal properties, in particular the glass transition temperature, of azopolymers are examined in more detail in the second part. For certain azopolymer structures, a solid-to-liquid transition is observed depending on their conformation (trans or cis), which is associated with the glass transition temperature. In order to better understand this phenomenon, the thermal properties of several different azopolymers are determined by different methods. The azopolymers differ in their polymer backbone, length of the side chain or azobenzene substituents. Furthermore, possible applications based on photoinduced solid-liquid transitions are demonstrated.en_GB
dc.language.isoeng
dc.rightsin Copyrightde_DE
dc.rights.urihttps://rightsstatements.org/vocab/InC/1.0/
dc.subject.ddc540 Chemiede_DE
dc.subject.ddc540 Chemistry and allied sciencesen_GB
dc.titleAzobenzene-Containing Polymers for Photoswitching Applications: Design, Synthesis and Characterizationen_GB
dc.typeDissertationde_DE
dc.identifier.urnurn:nbn:de:hebis:77-diss-1000030189
dc.identifier.doihttp://doi.org/10.25358/openscience-3728-
jgu.type.dinitypedoctoralThesis
jgu.type.versionOriginal worken_GB
jgu.type.resourceText
jgu.description.extentVI, 199 Seiten
jgu.organisation.departmentExterne Einrichtungen-
jgu.organisation.year2018
jgu.organisation.number0000-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.organisation.placeMainz-
jgu.subject.ddccode540
opus.date.accessioned2019-08-02T10:05:35Z
opus.date.modified2019-08-02T10:12:46Z
opus.date.available2019-08-02T12:05:35
opus.subject.dfgcode00-000
opus.organisation.stringExterne Einrichtungen: Max-Plank-Institut für Polymerforschungde_DE
opus.identifier.opusid100003018
opus.institute.number5060
opus.metadataonlyfalse
opus.type.contenttypeDissertationde_DE
opus.type.contenttypeDissertationen_GB
Appears in collections:JGU-Publikationen

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