Star‐shaped Polymers through Simple Wavelength‐Selective Free‐Radical Photopolymerization

Anna Eibel, Jürgen Sattelkow, Michal Zalibera, J. Wang, A. Huber, Gerdt Müller, Kurt Dietliker, Harald Plank, Hansjörg Grützmacher, Georg Gescheidt-Demner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Star-shaped polymers represent highly desired materials in nanotechnology and life sciences, including biomedical applications (e.g., diagnostic imaging, tissue engineering, and targeted drug delivery). Herein, we report a straightforward synthesis of wavelength-selective multifunctional photoinitiators (PIs) that contain a bisacylphosphane oxide (BAPO) group and an α-hydroxy ketone moiety within one molecule. By using three different wavelengths, these photoactive groups can be selectively addressed and activated, thereby allowing the synthesis of ABC-type miktoarm star polymers through a simple, highly selective, and robust free-radical polymerization method. The photochemistry of these new initiators and the feasibility of this concept were investigated in unprecedented detail by using various spectroscopic techniques.
Original languageEnglish
Pages (from-to)14306-14309
JournalAngewandte Chemie - International Edition
Volume56
Issue number45
DOIs
Publication statusPublished - 2017

Keywords

  • atomic force microscopy

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