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Polymers with Cavities Tuned for Fast Selective Transport of Small Molecules and Ions
Abstract
Within a polymer film, free-volume elements such as pores and channels typically have a wide range of sizes and topologies. This broad range of free-volume element sizes compromises a polymer's ability to perform molecular separations. We demonstrated free-volume structures in dense vitreous polymers that enable outstanding molecular and ionic transport and separation performance that surpasses the limits of conventional polymers. The unusual microstructure in these materials can be systematically tailored by thermally driven segment rearrangement. Free-volume topologies can be tailored by controlling the degree of rearrangement, flexibility of the original chain, and judicious inclusion of small templating molecules. This rational tailoring of free-volume element architecture provides a route for preparing high-performance polymers for molecular-scale separations.
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Citations
Cited by
Smith, A. T., LaChance, A. M., Zeng, S., Liu, B., & Sun, L. (2019) · Nano Materials Science · doi:10.1016/j.nanoms.2019.02.004 · Cited by 1,643
Polymeric Gas Separation Membranes
Yampolskii, Y. (2012) · Macromolecules · doi:10.1021/ma300213b · Cited by 1,254
Membrane gas separation technologies for biogas upgrading
Chen, X. Y., Vinh-Thang, H., Ramirez, A. A., Rodrigue, D., & Kaliaguine, S. (2015) · RSC Advances · doi:10.1039/c5ra00666j · Cited by 503
Structuring adsorbents and catalysts by processing of porous powders
Akhtar, F., Andersson, L., Ogunwumi, S., Hedin, N., & Bergström, L. (2014) · Journal of the European Ceramic Society · doi:10.1016/j.jeurceramsoc.2014.01.008 · Cited by 363
Metadata
- Authors
- Park, H. B., Jung, C. H., Lee, Y. M., Hill, A. J., Pas, S. J., Mudie, S. T., Van Wagner, E., Freeman, B. D., & Cookson, D. J.
- Venue
- Science
- Published
- 2007-10-12
- Volume
- 318
- Issue
- 5848
- Pages
- 254-258
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1985934170
- Cited by
- 1,071
- References
- 0
- FWCI
- 46.04
- Type
- journal article
- Language
- en
- Open access
- closed
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- Park, H. B., Jung, C. H., Lee, Y. M., Hill, A. J., Pas, S. J., Mudie, S. T., Van Wagner, E., Freeman, B. D., & Cookson, D. J. (2007). Polymers with Cavities Tuned for Fast Selective Transport of Small Molecules and Ions. Science. https://doi.org/10.1126/science.1146744
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
