Exploring the Frontiers of Polymer Science and Technology: From Fundamentals to Applications (English)
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A Surface-tethered Dopant Method to Achieve 3D Control over the Growth of a Nanometers-Thin and Transparent Conducting Polymers Film
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The electrochemical growth of conductive polymer films is a convenient synthesis route but challenging to control due to local variability in the reaction kinetics. In this presentation, I will present a new method for electropolymerizing highly reproducible conductive polypyrrole films that are just nanometers thick, highly conductive, and possess intrinsic optical transparencies. The synthesis method utilizes a surface-tethered dopant molecule, in this case, a self-assembled monolayer of the highly anionic protein lubricin, to template and thus control the 3-dimensional growth of the polypyrrole when the electrochemical polymerization reaction is performed in a pyrrole monomer solution containing no additional dopant molecules or ions. Because the tethered dopant controls where and how much polypyrrole growth occurs, this method effectively decouples the fine film morphology, thickness, and spatial-growth from the polymerization reaction kinetics and represents a paradigm shift in the electrochemical polymerization of conductive polymer films.