Influence of the nature and structure of polyelectrolyte cryogels on the polymerization of (3,4-ethylenedioxythiophene) and spectroscopic characterization of the composites

0563762 - ÚMCH 2023 RIV CH eng J - Článek v odborném periodiku
Laishevkina, S. - Shevchenko, N. - Iakobson, O. - Dobrodumov, A. - Chelibanov, V. - Tomšík, Elena
Influence of the nature and structure of polyelectrolyte cryogels on the polymerization of (3,4-ethylenedioxythiophene) and spectroscopic characterization of the composites.
Molecules. Roč. 27, č. 21 (2022), č. článku 7576. E-ISSN 1420-3049
Institucionální podpora: RVO:61389013
Klíčová slova: polyelectrolyte gels * composite PEDOT@polyelectrolyte * electrochemical impedance spectroscopy
Obor OECD: Polymer science
Impakt faktor: 4.6, rok: 2022
Způsob publikování: Open access
https://www.mdpi.com/1420-3049/27/21/7576

Conductive hydrogels are polymeric materials that are promising for bioelectronic applications. In the present study, a complex based on sulfonic cryogels and poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated as an example of a conductive hydrogel. Preparation of polyacrylate cryogels of various morphologies was carried out by cryotropic gelation of 3-sulfopropyl methacrylate and sulfobetaine methacrylate in the presence of functional comonomers (2-hydroxyethyl methacrylate and vinyl acetate). Polymerization of 3,4-ethylenedioxythiophene in the presence of several of the above cryogels occurred throughout the entire volume of each polyelectrolyte cryogel because of its porous structure. Structural features of cryogel@PEDOT complexes in relation to their electrochemical properties were investigated. It was shown that poly(3,4-ethylenedioxythiophene) of a linear conformation was formed in the presence of a cryogel based on sulfobetaine methacrylate, while minimum values of charge-transfer resistance were observed in those complexes, and electrochemical properties of the complexes did not depend on diffusion processes.
Trvalý link: https://hdl.handle.net/11104/0336170