Processability of poly 2,5-di-(-2-thienyl)pyrrole, poly(SNS)

Toribio Fernandez Otero; Sara Villanueva; Enrique Brillas; Jose Carrasco

doi:10.1117/12.349687

28 May 1999 Processability of poly 2,5-di-(-2-thienyl)pyrrole, poly(SNS)

Toribio Fernandez Otero, Sara Villanueva, Enrique Brillas, Jose Carrasco

Proceedings Volume 3669, Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices; (1999) https://doi.org/10.1117/12.349687
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

A polyconjugated and electroactive material was electrogenerated as a film by flow of anodic currents through solutions containing the monomer 2,5-di-(-2-thienyl)pyrrole, SNS, an electrolyte (LiClO₄) and the solvent, acentonitrile. The weight of the electropolymerized material increases linearly with the consumed charge: the electrogeneration is a faradaic process. The oxidized material is insoluble in some electrolytes but it solves by electrochemical reduction following again this electrodissolution a faradaic process. Electropolymerization and electrodissolution are not reverse processes. The polymerization involves the generation of new covalent bonds in order to create a new material, the polymer, from the monomer. The flow of an anodic current through a solution formed by electrodissolution of different films deposits again an electroactive material. This electrodeposition is the opposite process, related to the electrodissolution, meanwhile, the productivity of the electropolymerization process is 1/4 that of those processes. Electrodissolution and electrodeposition mimic similar ways of processability using inorganic metals.

Citation Download Citation

Toribio Fernandez Otero, Sara Villanueva, Enrique Brillas, and Jose Carrasco "Processability of poly 2,5-di-(-2-thienyl)pyrrole, poly(SNS)", Proc. SPIE 3669, Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices, (28 May 1999); https://doi.org/10.1117/12.349687

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