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Article

Extended 2,2′-Bipyrroles: New Monomers for Conjugated Polymers with Tailored Processability

1
Grup d’Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
2
Electrochemical Methods Laboratory—Analytical and Applied Chemistry Department at Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017 Barcelona, Spain
3
Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 50018 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(6), 1068; https://doi.org/10.3390/polym11061068
Received: 14 May 2019 / Revised: 14 June 2019 / Accepted: 16 June 2019 / Published: 20 June 2019
The synthesis of 2,2′-bipyrroles substituted at positions 5,5′ with pyrrolyl, N-methyl-pyrrolyl and thienyl groups and their application in the preparation of conducting polymers is reported herein. The preparation of these monomers consisted of two synthetic steps from a functionalized 2,2′-bipyrrole: Bromination of the corresponding 2,2′-bipyrrole followed by Suzuki or Stille couplings. These monomers display low oxidation potential compared to pyrrole because of the extended length of their conjugation pathway. The resulting monomers can be polymerized through oxidative/electropolymerization. Electrical conductivity and electrochromic properties of the electrodeposited polymeric films were evaluated using 4-point probe measurements and cyclic voltammetry to evaluate their applicability in electronics. View Full-Text
Keywords: pyrrole; 2,2′-bipyrrole; polypyrrole; conjugated polymer; electropolymerization pyrrole; 2,2′-bipyrrole; polypyrrole; conjugated polymer; electropolymerization
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MDPI and ACS Style

Texidó, R.; Anguera, G.; Colominas, S.; Borrós, S.; Sánchez-García, D. Extended 2,2′-Bipyrroles: New Monomers for Conjugated Polymers with Tailored Processability. Polymers 2019, 11, 1068. https://doi.org/10.3390/polym11061068

AMA Style

Texidó R, Anguera G, Colominas S, Borrós S, Sánchez-García D. Extended 2,2′-Bipyrroles: New Monomers for Conjugated Polymers with Tailored Processability. Polymers. 2019; 11(6):1068. https://doi.org/10.3390/polym11061068

Chicago/Turabian Style

Texidó, Robert, Gonzalo Anguera, Sergi Colominas, Salvador Borrós, and David Sánchez-García. 2019. "Extended 2,2′-Bipyrroles: New Monomers for Conjugated Polymers with Tailored Processability" Polymers 11, no. 6: 1068. https://doi.org/10.3390/polym11061068

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