Отправить статью по E-mail Physicochemical Properties of Mesoporous Silicas Modified with Hydrazide and Amide Functional Groups
- Авторы: Batueva T.D.1, Kondrashina N.B.1, Kuz’micheva N.D.1, Tiunova T.G.1, Shcherban’ M.G.2
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Учреждения:
- Institute of Technical Chemistry
- Perm State National Research University
- Выпуск: Том 90, № 11 (2017)
- Страницы: 1746-1752
- Раздел: Inorganic Synthesis and Industrial Inorganic Chemistry
- URL: https://journals.rcsi.science/1070-4272/article/view/215353
- DOI: https://doi.org/10.1134/S1070427217110039
- ID: 215353
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Аннотация
Physicochemical properties of mesoporous silicas modified with hydrazide and amide functional groups were studied. It was found that the main properties of the sorbents under study, characterized by pKa1, are weakly pronounced. The replacement of the counter ion with a hydroxide occurs in a less alkaline medium, compared with monomer analogs. The sorbent modified with N', N'-dimethylhydrazide groups by the impregnation method has pKa2 = 11.78, which is indicative of a sufficient strength of bonding between the counter ion and the silica matrix. The temperature limits, heat effects, and decomposition stages of the sorbents were determined.
Об авторах
T. Batueva
Institute of Technical Chemistry
Автор, ответственный за переписку.
Email: tdbatueva@mail.ru
Россия, Perm
N. Kondrashina
Institute of Technical Chemistry
Email: tdbatueva@mail.ru
Россия, Perm
N. Kuz’micheva
Institute of Technical Chemistry
Email: tdbatueva@mail.ru
Россия, Perm
T. Tiunova
Institute of Technical Chemistry
Email: tdbatueva@mail.ru
Россия, Perm
M. Shcherban’
Perm State National Research University
Email: tdbatueva@mail.ru
Россия, ul. Bukireva 15, Perm, 614990
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