Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 9, Pages 2353-2356Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710951
Keywords
3D printing; cellulose nanocrystals; hydrogels; nanocomposites; photoinitiators
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Funding
- Swiss National Science Foundation (NFP 66) [136688]
- Swiss National Science Foundation [150638]
- China Scholarship Council
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Cellulose nanocrystals (CNCs) with > 2000 photoactive groups on each can act as highly efficient initiators for radical polymerizations, cross-linkers, as well as covalently embedded nanofillers for nanocomposite hydrogels. This is achieved by a simple and reliable method for surface modification of CNCs with a photoactive bis(acyl) phosphane oxide derivative. Shape-persistent and free-standing 3D structured objects were printed with a mono-functional methacrylate, showing a superior swelling capacity and improved mechanical properties.
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