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Efficient Synthesis of Narrowly Dispersed Brush Polymers via Living Ring-Opening Metathesis Polymerization of Macromonomers
Abstract
Various macromonomers (MMs) were efficiently synthesized through the copper-catalyzed “click” coupling of a norbornene moiety to the chain end of poly(methylacrylate), poly( t -butylacrylate), and polystyrene that were prepared using atom transfer radical polymerization. Ring-opening metathesis polymerization (ROMP) of these MMs was carried out using the highly active, fast-initiating ruthenium catalyst (H 2 IMes)(pyr) 2 (Cl) 2 RuCHPh in THF at room temperature. ROMP of MMs was found to be living with almost quantitative conversions (>90%) of MMs, producing brush polymers with very low polydispersity indices of 1.01−1.07 and high M n ’s of 200−2600 kDa. The efficient ROMP of such MMs provides facile access to a variety of brush polymers and overcomes previous difficulties in the controlled polymerization of MMs. Atomic force microscopy of the brush polymer products revealed extended, wormlike shapes as a result of significant steric repulsion of densely grafted side chains.
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Citations
Cites
ROMP Reactivity of e ndo - and e xo -Dicyclopentadiene
Rule, J. D., & Moore, J. S. (2002) · Macromolecules · doi:10.1021/ma0209489 · Cited by 266
Cited by
Integrated Materials Design of Organic Semiconductors for Field-Effect Transistors
Mei, J., Diao, Y., Appleton, A. L., Fang, L., & Bao, Z. (2013) · Journal of the American Chemical Society · doi:10.1021/ja400881n · Cited by 1,443
Structure, function, self-assembly, and applications of bottlebrush copolymers
Verduzco, R., Li, X., Pesek, S. L., & Stein, G. E. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00329b · Cited by 676
Click chemistry strategies for the accelerated synthesis of functional macromolecules
Geng, Z., Shin, J. J., Xi, Y., & Hawker, C. J. (2021) · Journal of Polymer Science · doi:10.1002/pol.20210126 · Cited by 269
Miyake, G. M., Weitekamp, R. A., Piunova, V. A., & Grubbs, R. H. (2012) · Journal of the American Chemical Society · doi:10.1021/ja306430k · Cited by 265
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Metadata
- Authors
- Xia, Y., Kornfield, J. A., & Grubbs, R. H.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-04-20
- Volume
- 42
- Issue
- 11
- Pages
- 3761-3766
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2022874479
- Cited by
- 323
- References
- 1
- FWCI
- 10.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xia, Y., Kornfield, J. A., & Grubbs, R. H. (2009). Efficient Synthesis of Narrowly Dispersed Brush Polymers via Living Ring-Opening Metathesis Polymerization of Macromonomers. Macromolecules. https://doi.org/10.1021/ma900280c
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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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