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All‐in‐One Cellulose Nanocrystals for 3D Printing of Nanocomposite Hydrogels
Author(s) -
Wang Jieping,
Chiappone Annalisa,
Roppolo Ignazio,
Shao Feng,
Fantino Erika,
Lorusso Massimo,
Rentsch Daniel,
Dietliker Kurt,
Pirri Candido Fabrizio,
Grützmacher Hansjörg
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201710951
Subject(s) - nanocomposite , self healing hydrogels , methacrylate , cellulose , materials science , nanocrystal , covalent bond , surface modification , polymer chemistry , chemical engineering , nanotechnology , chemistry , polymer , composite material , organic chemistry , copolymer , engineering
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.