Abstract
A series of aromatic polymers and copolymers have been investigated that contain a combination of 2,5-thienylene and 1,4-phenylene linkages. l,4-Bis-(2-thienyl)phenylene monomers have been prepared with a variety of substituents on the 2,5-phenylene positions. Subsequent oxidative polymerization of these monomers, both chemically and electrochemically, yield a family of polymers containing a thiophene-phenylene-thiophene repeat unit. Theoretical modeling, using both PRDDO and ab initio methods, has been used to correlate the thiophene-phenylene torsional angles with band gaps. In addition, polymer band structure has been investigated using the Extended Hiickel method.
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Ruiz, J.P., Nayak, K., Child, A.D. et al. Heterocyclic Polymers and Copolymers with Controlled Optoelectronic Properties. MRS Online Proceedings Library 173, 369–374 (1989). https://doi.org/10.1557/PROC-173-369
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DOI: https://doi.org/10.1557/PROC-173-369