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Dynamics of dual-junction-functionality associative polymer networks with ion and nanoparticle metal-coordinate cross-link junctions.
- Source :
-
Journal of Rheology . Nov2022, Vol. 66 Issue 6, p1333-1345. 13p. - Publication Year :
- 2022
-
Abstract
- We provide a canonical introduction to dual-junction-functionality associative polymer networks, which combine high and low functionality (f) dynamic cross-link junctions to impart load-bearing, dissipation, and self-repairing ability to the network. This unique type of network configuration offers an alternative to traditional dual-junction networks consisting of covalent and reversible cross-links. The high-f junctions can provide load-bearing abilities similar to a covalent cross-link while retaining the ability to self-repair and concurrently confer stimuli-responsive properties arising from the high-f junction species. We demonstrate the mechanical properties of this design motif using metal-coordinating polymer hydrogel networks, which are dynamically cross-linked by different ratios of metal nanoparticle (high-f) and metal ion (low-f) cross-link junctions. We also demonstrate the spontaneous self-assembly of nanoparticle-cross-linked polymers into anisotropic sheets, which may be generalizable for designing dual-junction-functionality associative networks with low volume fraction percolated high-f networks. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMER networks
*METAL ions
*IONS
*POLYMERS
Subjects
Details
- Language :
- English
- ISSN :
- 01486055
- Volume :
- 66
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Rheology
- Publication Type :
- Academic Journal
- Accession number :
- 160042688
- Full Text :
- https://doi.org/10.1122/8.0000410