Norbornadiene End-Capping of Cross-Coupling Polymerizations: A Facile Route to Triblock Polymers
Author(s)Swager, Timothy Manning; Cox, Jason R.; Kang, Hyun A.; Igarashi, Takeshi
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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.
DepartmentMassachusetts Institute of Technology. Institute for Soldier Nanotechnologies; Massachusetts Institute of Technology. Department of Chemistry
ACS Macro Letters
American Chemical Society (ACS)
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.
Author's final manuscript