Journal
BIOMACROMOLECULES
Volume 21, Issue 6, Pages 2032-2042Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.biomac.9b01764
Keywords
-
Funding
- University of the Basque Country (UPV/EHU) [GIU18/216]
- Spanish Ministry of Economy and Competitiveness [MAT2016-76294R]
- UPV/EHU [DOCREC17/13]
Ask authors/readers for more resources
Hybrid bionanocomposites with shape-memory behavior are reported. The materials were accessed by combining a polyurethane matrix with a highly renewable carbon content, cellulose nanocrystals (CNCs), and magnetite nanoparticles (MNPs). The integration of the two nanoparticle types resulted in tough materials that display a higher stiffness and storage modulus in the glassy and rubbery state, thus contributing to the structural reinforcement, as well as magnetic properties, reflecting a synergistic effect of this combination. A quantitative characterization of the thermoactivated shape-memory effect made evident that the addition of CNCs increases the shape fixity, due to the higher glass transition temperature (T-g) and the higher stiffness below T-g than the neat PU, while the addition of MNPs made it possible to activate the shape recovery by applying an alternating magnetic field. Moreover, the new hybrid bionanocomposites showed good bio- and hemocompatibility.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available