Norbornadiene End-Capping of Cross-Coupling Polymerizations: A Facile Route to Triblock Polymers
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523.15 KB
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Author(s)
Cox, Jason R.
Kang, Hyun A.
Igarashi, Takeshi
Swager, Timothy M
Date Issued
February 2012
Journal
ACS Macro Letters
Publisher
American Chemical Society (ACS)
Citation
Cox, Jason R. et al. “Norbornadiene End-Capping of Cross-Coupling Polymerizations: A Facile Route to Triblock Polymers.” ACS Macro Letters 1.2 (2012): 334–337.
Version
Author's final manuscript
Abstract
The potential use of conjugated polymers in device applications is often limited by their less than optimal physicochemical properties. This work describes an efficient protocol to end-cap conjugated polymers synthesized via palladium-catalyzed cross-coupling polymerizations with norbornene groups. Specifically, the hydroarylation of norbornadiene is shown to be a high-yielding end-capping method. These strained bicyclic alkenyl end groups can be transformed into macroinitiators via ring-opening metathesis polymerization and can polymerize other strained monomers, such as norbornene, yielding elastomeric triblock copolymers.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemistry
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/mz200205k
