Journal
CARBOHYDRATE POLYMERS
Volume 165, Issue -, Pages 39-50Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.02.027
Keywords
Chitosan; Dynamic covalent chemistry; Superporous; Luminescence; Thixotropy; Self-healing
Categories
Funding
- Romanian National Authority for Scientific Research
- MEN - UEFISCDI grant [PN-II-RU-TE-2014-4-2314]
- European Union's Horizon research and innovation program [667387]
Ask authors/readers for more resources
Hydrogels based on chitosan and salicyladehyde were obtained by dynamic covalent chemistry. The unusual chitosan gelling in the presence of the monoaldehyde has been deciphered following and correlating data of NMR, FTIR, single crystal and wide angle XRD, POM and optical measurements. Of significant importance in understanding the crosslinking features was the synthesis of a model compound and the successfully growth as single crystal allowing the study of its supramolecular peculiarities. The hydrogels exhibited in SEM a porous or fibrous morphology, in good correlation with the crosslinking degree. They swelled very fast, similar to the superporous hydrogels of third generation and exhibited self-healing properties. Rheological investigation demonstrated good mechanical properties, thermosensitivity and thixotropy. The paper revealed a hydrogel with suitable properties for use in bio-medical applications, and moreover, revealed a new concept of obtaining chitosan hydrogels using monoaldehydes - which are widespread in nature, cheap and beneficial to the human body. (C) 2017 Elsevier Ltd. All rights reserved.
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