Separation characteristics and the state of water in ultrafiltration charged membranes modified by anionic SAS

Autor:	I. D. Atamanenko, A. V. Bil’dyukevich, A.A. Kavitskaya, N. A. Klimenko
Rok vydání:	2008
Předmět:	Aramid Differential scanning calorimetry Membrane Chemical engineering Chemistry Synthetic membrane Ultrafiltration Analytical chemistry General Chemistry Porosity Sodium dodecylsulfate Water Science and Technology
Zdroj:	Journal of Water Chemistry and Technology. 30:105-111
ISSN:	1934-936X 1063-455X
DOI:	10.3103/s1063455x08020070
Popis:	We have investigated separation characteristics of experimental charged ultrafiltration membranes based on aromatic polyamide PA-100(+), PA-100(−), and membrane PA-10 modified by the solutions of sodium dodecylsulfate of various concentrations. The method of differential scanning calorimetry was used to study the state of the water in initial and modified membranes. It has been found that the treatment of the membranes PA-100(+) and PA-100(−) with the solutions of sodium dodecylsulfate results in an increase of their hydrophilicity. Concurrently one can observe minor variations of separation characteristics of the PA-100(−) membrane. In the case of the PA-10 membrane there occurs hydrophobization of the surface and the porous space, which substantially affects its separation characteristics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60df809ebba71a81b6c19a30c35d4433 https://doi.org/10.3103/s1063455x08020070 Zobrazit plný text záznamu Full text from SpringerLink