Hydrophilic nature and sorption-diffusion properties of nanocomposite hybrid polysulfone films / Suvorova A. I.,Tyukova I. S.,Suvorov A. L.,Malysheva N. N.,Okhokhonin A. V. // RUSSIAN CHEMICAL BULLETIN. - 2012. - V. 61, l. 3. - P. 555-562.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

Hybrid nanocomposite films containing silica (a parts per thousand yen11.4 wt.\%) or titania (a parts per thousand yen18.8 wt.\%) in the polymer matrix were prepared by the sol-gel method using the hydrolytic polycondensation of tetraethoxysilane and tetrabutoxysilane in a THF solution of aromatic polymer, polysulfone (PSF). The influence of the oxide nature and the film composition on the structure, the interaction of the polymer with oxides, hydrophilicity, and sorption-diffusion properties of the hybrid films were studied by FTIR spectroscopy, atomic force microscopy, dynamic light scattering, and a complex of other physicochemical methods. The absence of chemical or intermolecular hydrogen bonds between the polymer and oxide particles in the PSF films was shown. The average size of the oxides (SiO2, similar to 20 nm; TiO2, similar to 90 nm) in the films and roughness of their surface (similar to 0.2-0.8 nm) were determined. The introduction of oxides into the polymer matrix increases the hydrophilic properties and the ability of the PSF films to swell in water; the diffusion coefficients of water and permeability of water vapor in the PSF films also increase. Titania also induces a more considerable change in the structure of the polymer matrix and more strongly affects the sorption-diffusion properties of the hybrid films in aqueous solutions of THF. All prepared nanocomposite films PSF/SiO2 and PSF/TiO2 are capable of extracting an organic component from aqueous solutions and can be used as sorbents and membrane films for the removal of organic substances from the aqueous medium.

Author keywords:

polysulfone; silica; titania; sol-gel process; hydrophilicity; swelling; sorption; diffusion; permeability SOL-GEL PROCESS; WATER/POLYMER INTERACTION PARAMETER; MEMBRANES; SEPARATION; SYSTEMS; POLYMER

DOI:

10.1007/s11172-012-0081-y

Web of Science ID:

ISI:000312494700009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	SOL-GEL PROCESS; WATER/POLYMER INTERACTION PARAMETER; MEMBRANES; SEPARATION; SYSTEMS; POLYMER
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Author-Email	Anna.Suvorova@usu.ru
ResearcherID-Numbers	Okhokhonin, Andrei/H-2548-2012 Malysheva, Natalia/A-3667-2015
ORCID-Numbers	Okhokhonin, Andrei/0000-0003-2922-7623 Malysheva, Natalia/0000-0002-3606-9216
Funding-Acknowledgement	Russian Foundation for Basic Research {[}08-03-00552]
Funding-Text	This work was financially supported by the Russian Foundation for Basic Research (Project No. 08-03-00552).
Number-of-Cited-References	34
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	9
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	056MQ