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Hybrid membranes based on silica and 2-hydroxyethylmethacrylate–4-vinylpyridine copolymers
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.
Hybrid membranes based on silica and 2-hydroxyethylmethacrylate–4-vinylpyridine copolymers
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.
Hybrid membranes based on silica and 2-hydroxyethylmethacrylate–4-vinylpyridine copolymers
Lebedeva, O. V. (author) / Sipkina, E. I. (author) / Pozhidaev, Yu. N. (author)
Petroleum Chemistry ; 56 ; 401-405
2016-05-01
5 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2001
| British Library Online Contents | 2014
Design of complex molecular structures based on 2- and 4-vinylpyridine copolymers
| British Library Online Contents | 2002
| British Library Online Contents | 2014
| British Library Online Contents | 2014