All‐in‐One Cellulose Nanocrystals for 3D Printing of Nanocomposite Hydrogels. (16th January 2018)

• Record Type: Journal Article
• Authors: Wang, Jieping; Chiappone, Annalisa; Roppolo, Ignazio; Shao, Feng; Fantino, Erika; Lorusso, Massimo; Rentsch, Daniel; Dietliker, Kurt; Pirri, Candido Fabrizio; Grützmacher, Hansjörg
• Is Part Of: Angewandte Chemie. Volume 130:Number 9(2018)
• Page Start: 2377
• Page End: 2380
• Publication Date: 2018-01-16
• Subjects: 3D-Druck -- Cellulose-Nanokristalle -- Hydrogele -- Nanokomposite -- Photoinitiatoren; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201710951
• Languages: English
• ISSNs: 0044-8249

Abstract

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.