Комплексы полианилина с сульфированным полисульфоном, их структура и сенсорные свойства

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Abstract

Химическую полимеризацию анилина проводили в водных растворах сульфированного полисульфона (СПС) при различных соотношениях концентраций анилина и сульфогрупп СПС. Ход полимеризации был исследован методом in situ спектроскопии в УФ-видимой-ближней ИК-областях. Показано, что при увеличении концентрации СПС скорость полимеризации увеличивается. Пленки вододиспергируемых комплексов полианилина (ПАНИ) с СПС были получены методом пульверизации. Впервые изучены электронная и химическая структура, морфология и сенсорные (аммиак) свойства пленок комплексов ПАНИ-СПС.

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About the authors

В. А. Кабанова

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Author for correspondence.
Email: kabanovavar@gmail.com
Russian Federation, Москва

О. Л. Грибкова

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Email: kabanovavar@gmail.com
Russian Federation, Москва

С. И. Позин

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Email: kabanovavar@gmail.com
Russian Federation, Москва

В. А. Тверской

МИРЭА – Российский технологический университет

Email: kabanovavar@gmail.com

Институт тонких химических технологий имени М.В. Ломоносова

Russian Federation, Москва

A. A. Некрасов

Институт физической химии и электрохимии им. А.Н. Фрумкина РАН

Email: kabanovavar@gmail.com
Russian Federation, Москва

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Supplementary files

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2. Fig. 1. Structural formula of sulfonated polysulfone.

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3. Fig. 2. Changes in electronic absorption spectra during the polymerization of aniline in the presence of SPS at [Aniline]/[-SO3H] = 1/3 mol/g-eq. Arrows show the change in absorption of the solution in the regions of characteristic wavelengths.

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4. Fig. 3. Curves of changes in optical absorption obtained during the polymerization of aniline in the presence of HPS: at [Aniline]/[-SO3H] = 1:2 mol/g-eq, at wavelengths of 370 (1), 690 (2) and 800 nm (3) (a) and at [Aniline]/[-SO3H] equal to 1:1 (1), 1:2 (2), 1:3 (3), 1:4 (4), 1:6 (5) at a wavelength of 690 nm (b).

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5. Fig. 4. Electronic absorption spectra of PANI-SPS complex films obtained at [Aniline]/[-SO3H] equal to 1:1 (1), 1:2 (2), 1:3 (3), 1:4 (4), 1:6 (5) mol/g-eq.

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6. Fig. 5. Normalized (line intensity 1156 cm–1 – coplanar deformation vibrations of C–H bonds in aromatic rings of PANI) Raman spectra upon excitation with a 785 nm laser of PANI-SPS films deposited on glass substrates by the spraying method.

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7. Fig. 6. Images of the surface of PANI films applied by spraying onto glass: AFM (a–g), optical microscopy (d–f). The ratio of components is 1:3 (a, b), 1:6 (c, d), and 1:1 (d, f).

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8. Fig. 7. Changes in the electronic absorption spectra of the film obtained at [Aniline]/[-SO3H] = 1:6 mol/g-eq. in air with an ammonia concentration of 263 ppm. Arrows indicate the course of changes in the regions of characteristic wavelengths.

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9. Fig. 8. Relative change in time of optical absorption at a wavelength of 810 nm under the influence of ammonia vapor with a concentration of 263 ppm (a) and dependences of the maximum response amplitude (A) on the ammonia concentration (b) for films of PANI-SPS complexes synthesized at [Aniline]/[-SO3H] equal to 1 : 1 (1), 1 : 2 (2), 1 : 3 (3), 1 : 4 (4), 1 : 6 (5) mol/g-eq.

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