Norbornadiene End-Capping of Cross-Coupling Polymerizations: A Facile Route to Triblock Polymers

作者：Cox Jason R; Kang Hyun A; Igarashi Takeshi; Swager Timothy M^*

来源：ACS Macro Letters, 2012, 1(2): 334-337.

DOI：10.1021/mz200205k

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.

• 出版日期2012-2