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Dual Cross-Linked Hydrogels That Undergo Structural Transformation via Selective Triggered Depolymerization
- Source :
- Chemistry of Materials. 31:6249-6256
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- This study demonstrates the preparation of dual cross-linked hydrogels capable of selective, spontaneous de-cross-linking behavior triggered by head-to-tail depolymerization. A primary covalent structure of the materials was established on a thermoresponsive network containing pendant functional moieties that could induce noncovalent interaction when combined with a macro-cross-linker. The incorporation of the macro-cross-linker not only reinforced the entire structure while providing secondary physical cross-linking but also caused the resulting materials to show autonomous responses via depolymerization. As a result, transformation of the material was achieved without structural collapse, as the noncovalent network in the materials was rapidly, selectively, and completely removed through the depolymerization reaction of the polymer cross-linker when initiated by a trace (
- Subjects :
- chemistry.chemical_classification
Depolymerization
General Chemical Engineering
02 engineering and technology
General Chemistry
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
chemistry
Covalent bond
Cross linked hydrogels
Self-healing hydrogels
Materials Chemistry
Biophysics
0210 nano-technology
Subjects
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........56e8a2b6c175b5ac58b55e0be61d69af