New water-soluble photo-initiators for two-photon polymerization based on benzylidene cyclopentanones

Thomas Wloka,Steffen Czich,Franziska Chalupa-Gantner,Maria Sittig,Michael Dirauf,Christine Weber,Michael Gottschaldt,Klaus Liefeith,Aleksandr Ovsianikov,Benjamin Dietzek-Ivanšić,Ulrich S. Schubert

Journal of Photochemistry and Photobiology A: Chemistry（2023）

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摘要

•Several water-solublephoto-initiators (PI) for two-photon polymerization (2PP) based on cyclopentanone with a D-π-A-□π-D structure have been investigated.•PIs equipped with poly(2-ethyl-2-oxazoline) chains reveal good water solubility and successfully initiate polymerization under 2PP conditions.•Bisacrylate funcational poly(2-ethyl-2-oxazoline) macromonomers were directly polymerized by 2PP to compare fabrication window (FW) of each PI.

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关键词

benzylidene cyclopentanones,polymerization,water-soluble,photo-initiators,two-photon

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