title: Functionalized branched EDOT-terthiophene copolymer films by electropolymerization and post-polymerization "click"-reactions.
abstract: The electrocopolymerization of 3,4-ethylenedioxythiophene (EDOT) with the branched thiophene building block 2,2':3',2″-terthiophene (3T) is presented as a versatile route to functional polymer films. Comparisons to blend systems of the respective homopolymers PEDOT and P3T by in situ spectroelectrochemistry and Raman spectroscopy prove the successful copolymer formation and the access to tailored redox properties and energy levels. The use of EDOT-N3 as co-monomer furthermore allows modifications of the films by polymer analogous reactions. Here, we exemplarily describe the post-functionalization with ionic moieties by 1,3-dipolar cycloaddition ("click"-chemistry) which allows to tune the surface polarity of the copolymer films from water contact angles of 140° down to 40°.
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Miriam
authors: M
authors: Goll
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Adrian
authors: A
authors: Ruff
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Erna
authors: E
authors: Muks
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Felix
authors: F
authors: Goerigk
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Beatrice
authors: B
authors: Omiecienski
authors: Thermo Fisher Scientific GmbH, Im Steingrund 4-6, 63303 Dreieich, Germany.
authors: Ines
authors: I
authors: Ruff
authors: Department of Physical Chemistry, University of Málaga, 29071 Málaga, Spain.
authors: Rafael C
authors: RC
authors: González-Cano
authors: Department of Physical Chemistry, University of Málaga, 29071 Málaga, Spain.
authors: Juan T
authors: JT
authors: Lopez Navarrete
authors: Department of Physical Chemistry, University of Málaga, 29071 Málaga, Spain.
authors: M Carmen
authors: MC
authors: Ruiz Delgado
authors: IPOC-Functional Polymers, Institute for Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
authors: Sabine
authors: S
authors: Ludwigs
keywords: Raman spectroscopy; band-gap engineering; conducting polymers; electropolymerization; surface functionalization; “click”-chemistry