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A Study of Cryostructuring of Polymer Systems. 54. Hybrid Organo-Inorganic Poly(vinyl alcohol) Cryogels Filled with in situ Formed Silicaстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 апреля 2021 г.
- Авторы: Bakeeva I.V., Doktorova A.V., Damshkaln L.G., Lozinsky V.I.
- Журнал: Colloid Journal
- Том: 83
- Номер: 1
- Год издания: 2021
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 49
- Последняя страница: 63
- DOI: 10.1134/S1061933X21010026
- Аннотация: Macroporous viscoelastic poly(vinyl alcohol) (PVA) cryogels are formed via the cryogenic processing (freezing/incubation in the frozen state/defrosting) of concentrated solutions of the polymer. Suchmaterials are of significant scientific and applied interest. This also concerns various complex and compositePVA cryogels containing soluble and insoluble (fillers) additives, respectively. Novel organo-inorganic hybridPVA cryogels containing silica components have been obtained and studied in this work. These hybrid cryogels are formed via the interaction of sodium silicate with hydrochloric acid, which are introduced into anaqueous PVA solution immediately before its cryogenic processing. As a result, the transformation of theinorganic components occurs simultaneously with the cryotropic gelation of PVA. It has been found that thephysicomechanical properties, heat endurance, and macroporous morphology of the obtained samplesdepend on the concentration of the inorganic additives and the temperature conditions of the cryogenic process. Moreover, it has been revealed that formed NaCl and additionally polarized hydrogen bonds betweenOH groups of PVA and silanol groups of in situ formed poly/oligo(silicic acids) have substantial effects on thecharacteristics of resulting hybrid cryogels.
- Добавил в систему: Лозинский Владимир Иосифович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 2. | Полный текст | Crst_54.pdf | 1,6 МБ | 15 декабря 2020 [Lozinskii] |