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Oxidative polymerization of aniline on the surface of silica in the presence of poly(sulfonic acids) as a method of preparing efficient biosorbents

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Abstract

Polyaniline coatings on the surface of the macroporous silica have been prepared by oxidative polymerization via protonation of aniline by poly(sulfonic acids): poly(p,p′-(2,2′-disulfonic acid)diphenyle-neisophthalamide and poly(p,p′-(2,2′-disulfonic acid)diphenyleneterephthalamide. Two variants of modification have been studied: namely, the polymerization of aniline carried out in the presence of the preliminarily silaminated glass covered by poly(sulfonic acid) and the modification of silaminated glass by preformed complexes of poly(p,p′-(2,2′-disulfonic acid)diphenylenephthalamide-polyaniline. In both cases, the even polyaniline-containing polymer coating with a thickness of ∼3 nm is formed on the support surface. Sorbents containing the poly(p,p′-(2,2′-disulfonic acid)diphenylenephthalamide-polyaniline complex are efficient for isolation of DNA from mixtures of biopolymers.

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Correspondence to V. P. Zubov.

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Original Russian Text © E.Yu. Yagudaeva, Ya.A. Bukina, A.I. Prostyakova, V.P. Zubov, V.A. Tverskoy, D.V. Kapustin, 2009, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2009, Vol. 51, No. 6, pp. 1000–1007

This work was supported by EU grant no. 037212 (LSHB-CT-2007-037212) DIAGNOSIS.

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Yagudaeva, E.Y., Bukina, Y.A., Prostyakova, A.I. et al. Oxidative polymerization of aniline on the surface of silica in the presence of poly(sulfonic acids) as a method of preparing efficient biosorbents. Polym. Sci. Ser. A 51, 675–682 (2009). https://doi.org/10.1134/S0965545X09060121

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