Issue 18, 2023

3D-printed ketoenamine crosslinked polyrotaxane hydrogels and their mechanochromic responsiveness

Abstract

A ketoenamine-based dynamic covalent crosslinker was introduced to α-cyclodextrin-based polypseudorotaxanes, forming viscoelastic hydrogels for direct-ink-write 3D printing. The irreversible enol–keto tautomerization imparts high chemical stability to the extensively crosslinked polyrotaxane hydrogels, which showed mechanochromic responsiveness in the presence of the integrated fluorophores.

Graphical abstract: 3D-printed ketoenamine crosslinked polyrotaxane hydrogels and their mechanochromic responsiveness

Supplementary files

Article information

Article type
Communication
Submitted
27 3 2023
Accepted
21 4 2023
First published
24 4 2023

Polym. Chem., 2023,14, 2159-2163

Author version available

3D-printed ketoenamine crosslinked polyrotaxane hydrogels and their mechanochromic responsiveness

D. Zheng, M. Tang and C. Ke, Polym. Chem., 2023, 14, 2159 DOI: 10.1039/D3PY00337J

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