Flexible Conductive Polymer Film Grafted with Azo-Moieties and Patterned by Light Illumination with Anisotropic Conductivity; Polymers; Vol. 11, iss. 11

Flexible Conductive Polymer Film Grafted with Azo-Moieties and Patterned by Light Illumination with Anisotropic Conductivity; Polymers; Vol. 11, iss. 11

Bibliographic Details
Parent link:Polymers
Vol. 11, iss. 11.— 2019.— [1856, 11 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Other Authors: Kalachyova E. Evgeniya, Guselnikova O. A. Olga Andreevna, Gnatovich V., Postnikov P. S. Pavel Sergeevich, Svorcik V. Vaclav, Lyutakov O. Oleksy
Summary:Title screen
In this work, we present the method for the creation of an anisotropic electric pattern on thin poly(3,4-thylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) films through PSS grafting by azo-containing moieties followed by light-induced polymers redistribution. Thin PEDOT:PSS films were deposited on the flexible and biodegradable polylactic acid (PLLA) substrates. The light-sensitive azo-groups were grafted to PSS using the diazonium chemistry followed by annealing in methanol. Local illumination of azo-grafted PEDOT:PSS films through the lithographic mask led to the conversion of azo-moieties in Z-configuration and further creation of the lateral gradient of azo-isomers along the film surface. The concentration gradient led to the migration of PSS away from the illuminated area, increasing the PEDOT chains’ concentration and the corresponding increase of local electrical conductivity in the illuminated place. Utilization of mask with linear pattern results in the appearance of conductive PEDOT-rich and non-conductive PSS-rich lines on the film surface, and final, lateral anisotropy of electric properties. Our work gives an optical lithography-based alternative to common methods for the creation of anisotropic electric properties, based on the spatial confinement of conductive polymer structures or their mechanical strains.
Language:English
Published: 2019
Subjects:
труды учёных ТПУ
электронный ресурс
flexible film
light pattering
electrical properties
resistance anisotropy
пленки
электрические свойства
Online Access:https://doi.org/10.3390/polym11111856
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661759

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