The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Highly branched and loop-rich gels via formation of metal–organic cages linked by polymers
Open accessAbstract
Gels formed via metal–ligand coordination typically have very low branch functionality, f, as they consist of ∼2–3 polymer chains linked to single metal ions that serve as junctions. Thus, these materials are very soft and unable to withstand network defects such as dangling ends and loops. We report here a new class of gels assembled from polymeric ligands and metal-organic cages (MOCs) as junctions. The resulting ‘polyMOC’ gels are precisely tunable and may feature increased branch functionality. We show two examples of such polyMOCs: a gel with a low f based on a M2L4 paddlewheel cluster junction and a compositionally isomeric one of higher f based on a M12L24 cage. The latter features large shear moduli, but also a very large number of elastically inactive loop defects that we subsequently exchanged for functional ligands, with no impact on the gel's shear modulus. Such a ligand substitution is not possible in gels of low f, including the M2L4-based polyMOC.
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Cited by
Metal–organic frameworks for membrane-based separations
Denny, M. S., Moreton, J. C., Benz, L., & Cohen, S. M. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.78 · Cited by 820
Polymer Networks: From Plastics and Gels to Porous Frameworks
Gu, Y., Zhao, J., & Johnson, J. A. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.201902900 · Cited by 388
Self-citationPhotoswitching topology in polymer networks with metal–organic cages as crosslinks
Gu, Y., Alt, E. A., Wang, H., Li, X., Willard, A. P., & Johnson, J. A. (2018) · Nature · doi:10.1038/s41586-018-0339-0 · Cited by 371
Self-citationCounting loops in sidechain-crosslinked polymers from elastic solids to single-chain nanoparticles
Wang, J., Wang, R., Gu, Y., Sourakov, A., Olsen, B. D., & Johnson, J. A. (2019) · Chemical Science · doi:10.1039/c9sc01297d · Cited by 48
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Metadata
- Authors
- Zhukhovitskiy, A. V., Zhong, M., Keeler, E. G., Michaelis, V. K., Sun, J. E. P., Hore, M. J. A., Pochan, D. J., Griffin, R. G., Willard, A. P., & Johnson, J. A.
- Venue
- Nature Chemistry
- Published
- 2015-11-16
- Volume
- 8
- Issue
- 1
- Pages
- 33-41
- ISSN
- 1755-4330 (ISSN-L)
- 1755-4349
- OpenAlex
- W2219757807
- Cited by
- 304
- References
- 45
- FWCI
- 8.67
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhukhovitskiy, A. V., Zhong, M., Keeler, E. G., Michaelis, V. K., Sun, J. E. P., Hore, M. J. A., Pochan, D. J., Griffin, R. G., Willard, A. P., & Johnson, J. A. (2016). Highly branched and loop-rich gels via formation of metal–organic cages linked by polymers. Nature Chemistry. https://doi.org/10.1038/nchem.2390
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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