Designing Π-Conjugated Polymeric Nano- and Microstructures via Light Induced Chemistry

Blasco, E., Yameen, B., Quick, A. S., Krolla-Sidenstein, P., Welle, A., Wegener, M., & Barner-Kowollik, C. (2015) Designing Π-Conjugated Polymeric Nano- and Microstructures via Light Induced Chemistry. Macromolecules, 48(24).

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We report the synthesis and characterization of a new class of photoreactive conjugated polymers (Mn= 9300 g mol-1, D = 1.24; Mn= 9100 g mol-1, D = 1.23; Mn= 8800 g mol-1, D = 1.24) consisting of functionalized polythiophene-containing photoresponsive groups, i.e. a polythiophene containing 4-hydroxy-2,5-dimethylbenzophenone (DMBP) ("photoenol") and/or maleimide groups. We evidence the chemical versatility and platform character of the generated light reactive polythiophenes in a range of examples by creating variable polythiophene functional 2D and 3D structures and morphologies. Single-chain nanoparticles and polymeric networks are formed by cross-linking of DMBP and maleimide containing polythiophene via UV light irradiation by varying the polymer concentration. Maleimide-functionalized polythiophene is employed for spatially resolved functionalization of surfaces and the coating of preformed 3D polymeric microstructures via direct laser writing (DLW). The generated polythiophene functional materials are carefully characterized via size exclusion chromatography, dynamic light scattering, and time-of-flight secondary ion mass spectrometry as well as FT-IR spectroscopy techniques. © 2015 American Chemical Society.

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3 citations in Web of Science®
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ID Code: 99422
Item Type: Journal Article
Refereed: Yes
Additional Information: Export Date: 5 September 2016
Correspondence Address: Barner-Kowollik, C.; Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, Germany; email:
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Keywords: Chromatography, Conjugated polymers, Crosslinking, Functional materials, Light scattering, Mass spectrometry, Microstructure, Organic polymers, Secondary ion mass spectrometry, Size exclusion chromatography, Direct laser writing, Functionalizations, Polymer concentrations, Polymeric microstructures, Polymeric networks, Synthesis and characterizations, Time of flight secondary ion mass spectrometry, UV-light irradiation, Sulfur compounds
DOI: 10.1021/acs.macromol.5b02024
ISSN: 00249297
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 26 Sep 2016 02:03

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