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Spatially resolved immobilization of metallopolymers – Spiropyrans for light sensitive metal complexes and STED-inspired laser lithography

Müller, Rouven


In the course of the present thesis, the first method for the spatially resolved surface immobilization of various metallopolymers on a single surface was developed, employing the versatile NITEC photochemistry. The in-depth analysis of the photoligation process identified crucial parameters for the successful immobilization of the metallopolymers, which are also valid for all other photo triggered surface ligation protocols. ToF-SIMS and spatially resolved XPS analysis of the prepared surfaces demonstrated the preserved chemical composition of the fabricated metallopolymer surfaces.

In the second part of the thesis, the photochemistry of spiro(thio)pyrans was investigated for the formation of light-sensitive spiropyran-metal complexes, as well as the creation of a photoresist for the application in STED-inspired lithography. The irradiation of an NMR tube inside the NMR spectrometer in so-called LED-NMR experiments was introduced for the investigation of the prepared spiropyran-metal complexes.

Finally, the photo triggered reaction of the spirothiopyran photoswitch with an electron deficient maleimide was used for the spatial encoding of surfaces for the first time. ... mehr

Volltext §
DOI: 10.5445/IR/1000098463
Veröffentlicht am 07.10.2019
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Hochschulschrift
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000098463
Verlag Karlsruher Institut für Technologie (KIT)
Umfang XIX, 308 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Chemie und Biowissenschaften (CHEM-BIO)
Institut Institut für Technische Chemie und Polymerchemie (ITCP)
Prüfungsdatum 09.05.2019
Projektinformation SFB 1176/1 (DFG, DFG KOORD, SFB 1176/1)
Externe Relationen Siehe auch
Schlagwörter polymer, metallopolymer, photo-chemical, photochemical, photo-ligation, photoligation, photo, ligation, surface characterization, surface, NITEC, ToF-SIMS, XPS, XPS imaging, XPS mapping, spiropyran, merocyanin, spirothiopyran, LED-NMR, STED, lithography, sub-diffraction, photoswitch, photochromic, DLW, direct laser writing, STED inspired, STED-inspired, two-photon excitation, photoresist, spatially-resolved, nitrile imine-mediated tetrazole-ene cycloaddition, o-quinodimethane, Diels–Alder, hetero Diels–Alder, tetrazole, bipyridine, triphenylphosphine, bifunctional, trifunctional, immobilization, silicon wafer, multifunctional, reversible-addition-fragmentation chain-transfer, RAFT, platinum, palladium, zinc, nickel, calcium, lanthanum, gold, X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, Beer–Lambert law, Job plot, Job’s method of continuous variations, spiropyran-metal complexes, lithographic encoding, maleimide, supramolecular, self-assembled monolayers, surface immobilized, surface-immobilized, postmodification, post-modification, photo-triggered, photo triggered, light sensitive, light-sensitive, photo-caged, photocaged, 3D microstructures, polymerization, dithiobenzoate, metal complex, thiol-Michael, Newman–Kwart, diffraction limit, grafting-to, phenacylsulfide, ligand monomer
Referent/Betreuer Barner-Kowollik, C.
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