Abstract
4-Vinylpyridine–2-hydroxyethylmethacrylate copolymers have been synthesized by radical copolymerization. The composition and properties of the copolymers have been studied; the reactivity constants of the comonomers have been calculated. Sol–gel synthesis involving the resulting copolymers and tetraethoxysilane has yielded hybrid membranes comprising a polymer matrix with uniformly distributed hydrated silica particles and exhibiting a proton conductivity of up to 1.85 × 10−2 S/cm, an ion-exchange capacity of 2.1 meq/g, a heat resistance of 412°С, a tensile strength of 55.5 MPa, an elongation at break of 15%, and a proton-conductivity activation energy of 12 ± 2 kJ/mol.
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Original Russian Text © O.V. Lebedeva, E.I. Sipkina, Yu.N. Pozhidaev, 2016, published in Membrany i Membrannye Tekhnologii, 2016, Vol. 6, No. 2, pp. 138–144.
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Lebedeva, O.V., Sipkina, E.I. & Pozhidaev, Y.N. Hybrid membranes based on silica and 2-hydroxyethylmethacrylate–4-vinylpyridine copolymers. Pet. Chem. 56, 401–405 (2016). https://doi.org/10.1134/S0965544116050091
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DOI: https://doi.org/10.1134/S0965544116050091