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.

All-in-One Cellulose Nanocrystals for 3D Printing of Nanocomposite Hydrogels / Wang, Jieping; Chiappone, Annalisa; Roppolo, Ignazio; Shao, Feng; Fantino, Erika; Lorusso, Massimo; Rentsch, Daniel; Dietliker, Kurt; Pirri, Candido Fabrizio; Grützmacher, Hansjörg. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - ELETTRONICO. - 57:9(2018), pp. 2353-2356. [10.1002/anie.201710951]

All-in-One Cellulose Nanocrystals for 3D Printing of Nanocomposite Hydrogels

Chiappone, Annalisa;Roppolo, Ignazio;Fantino, Erika;Lorusso, Massimo;Pirri, Candido Fabrizio;
2018

Abstract

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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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2709480