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Solvent free 3D printing_ChemRxiv.pdf (17.48 MB)

Solvent-Free Digital Light 3D Printing using Biodegradable Polymeric Photoinitiators

submitted on 27.11.2020, 16:02 and posted on 01.12.2020, 13:26 by matthias sandmeier, nevena paunovic, Riccardo Conti, Hofmann Leopold, Jieping Wang, Zhi Luo, Kunal Masania, Na wu, Nicole Kleger, Fergal B Coulter, André Studart, Hansjörg Grützmacher, Jean-Christophe Leroux, yinyin bao

Vat photopolymerization 3D printing provides new

opportunities for the fabrication of tissue scaffolds and medical

devices. However, it usually requires the use of organic solvents or

diluents to dissolve the solid photoinitators, making this process

environmentally unfriendly, and not optimal for biomedical

applications. Here, we report biodegradable liquid polymeric

photoinitiators for solvent-free 3D printing of biodegradable polymeric

materials by digital light processing. These photoinitiators enable

systematic investigation of structure-property relationship of 3D

printing polymeric materials without the interference from the reactive

diluents and offer new perspectives for the solvent-free 3D additive

manufacturing of bioresorbable medical implants as well as other

functional devices.


Swiss National Science Foundation

Federal Department of Economic Affairs Education and Research

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ETH Zürich



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Declaration of Conflict of Interest

No conflict of interest