Iterative and step-growth methods have long been common means to achieve sequence specificity in conjugated materials. Our method uses tunable, highly strained paracyclophane-1,9-diene (pCpd) frameworks with a pre-defined Donor-Acceptor sequence. ROMP has historically been used to synthesize sequence-specific polymers from monomers based on norbornenes, cyclooctenes, and other cycloalkenes. The pCpd monomer architectures can be comprised of differing aromatic moieties that exhibit differences in electron density and steric encumberment, which has shown promise toward achieving well-defined conjugated polymers. Herein, we detail recent efforts to synthesize sequence-controlled conjugated polymers by interrogating the properties of our monomers, highlighting new routes and strategies to synthesize additional pCpd monomers, further exploring the utility of ROMP to achieve well-defined polymers.

Investigation of stereoelectronic effects on the synthesis of novel, well-defined, and sequence-specific conjugated polymers by ROMP

ACS Fall 2021

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