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Melamine sponges decorated with polypyrrole nanotubes as macroporous conducting pressure sensors
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SYSNO ASEP 0544066 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Melamine sponges decorated with polypyrrole nanotubes as macroporous conducting pressure sensors Author(s) Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Kopecký, D. (CZ)
Kasparyan, H. (CZ)
Vilčáková, J. (CZ)
Prokeš, J. (CZ)
Křivka, I. (CZ)Source Title ACS Applied Nano Materials. - : American Chemical Society - ISSN 2574-0970
Roč. 4, č. 7 (2021), s. 7513-7519Number of pages 7 s. Language eng - English Country US - United States Keywords melamine sponge ; polypyrrole nanotubes ; conductivity Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GA19-04859S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000677582900102 EID SCOPUS 85110544547 DOI 10.1021/acsanm.1c01634 Annotation The macropores of melamine sponges were coated in situ during the polymerization of pyrrole with either polypyrrole globules or nanotubes and tested as pressure-sensing materials. The dependence of the conductivity of this compressible material on pressure was determined by the four-point van der Pauw method. The conductivity increased from the order of 10–2 S cm–1 to units of S cm–1 at 10 MPa, and it was higher for nanotubes. The pressure dependence of sponge resistance was also recorded in another experimental setup in the design of a simple low-pressure sensor. The information on electrical properties obtained by both methods is discussed. In addition, the use of the melamine sponge decorated with polypyrrole in fields that do not directly exploit conductivity, such as electromagnetic radiation shielding and/or adsorption of organic dye, is also demonstrated. The study proves the superior performance of polypyrrole nanotubes in all applications. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2022 Electronic address https://pubs.acs.org/doi/10.1021/acsanm.1c01634
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