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One-step synthesis of polyaniline-silver cryogels

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    0524698 - ÚMCH 2021 RIV US eng J - Journal Article
    Milakin, Konstantin A. - Morávková, Zuzana - Acharya, Udit - Šlouf, Miroslav - Hodan, Jiří - Bober, Patrycja
    One-step synthesis of polyaniline-silver cryogels.
    Journal of Materials Science. Roč. 55, č. 24 (2020), s. 10427-10434. ISSN 0022-2461. E-ISSN 1573-4803
    R&D Projects: GA ČR(CZ) GA18-04669S
    Institutional support: RVO:61389013
    Keywords : polyaniline-silver composites * cryogels * conductivity
    OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
    Impact factor: 4.220, year: 2020
    Method of publishing: Limited access
    https://link.springer.com/article/10.1007/s10853-020-04719-y

    Polyaniline–silver cryogels were prepared by a single-step cryopolymerization with a mixed oxidant consisting of ammonium peroxydisulfate and silver nitrate for in situ incorporation of silver particles. The macroporous structure of the materials and successful introduction of silver microparticles were confirmed by scanning electron microscopy paired with energy-dispersive spectroscopy. Changing of the silver nitrate content in the initial oxidant mixture was shown to be a facile way for controlling silver particles load in the resulting cryogels with a maximum achieved value of 25 wt%. Vibrational spectroscopy showed that the cryogels prepared using higher silver nitrate concentration contained more aniline oligomers which led to the moderate decrease in their conductivity and tensile modulus. Nevertheless, polyaniline–silver cryogels with the highest load of silver had a good conductivity (0.33 S cm–1) and mechanical stability making it a promising material for electrochemical and antibacterial applications.
    Permanent Link: http://hdl.handle.net/11104/0309148

     
     
Number of the records: 1  

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