A permittivity study for PVA membranes, obtained by freeze-thaw technique
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Tartalom: http://real.mtak.hu/56232/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
A permittivity study for PVA membranes, obtained by freeze-thaw technique
Létrehozó:
Patachia, Silvia
Papancea, Adina
Kiadó:
Akadémiai Kiadó
Dátum:
2006
info:eu-repo/date/embargoEnd/2026-04-30
Téma:
TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok
Tartalmi leírás:
Late diffusion or selective diffusion through polymeric membranes has various applications in separation processes, environmental protection, pharmaceutics for drug delivery systems, etc. The aim of this work is to present the results of some ions diffusion through poly(vinyl alcohol) [PVA] hydrogel membranes, obtained by freeze-thaw technique. The diffusion of potentially toxic ions -Pb(II)- and of alkaline ions like Na<sup>+</sup> and K<sup>+</sup> is tested using conductometry, flame photometry and atomic absorption spectrometry. The membrane permitivitty is calculated for every ionic species and the opportunity is studied to use these membranes in environmental protection, for waste water purification. The modifications of the PVA structure have been made by mixing the PVA solution with some natural products (beta-cyclodextrine or chitosan) or by compounding PVA hydrogel with Cu<sup>2+</sup>.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Patachia, Silvia and Papancea, Adina (2006) A permittivity study for PVA membranes, obtained by freeze-thaw technique. Pollack Periodica, 1 (1). pp. 105-113. ISSN 1788-1994
Kapcsolat:
https://doi.org/10.1556/Pollack.1.2006.1.8
Létrehozó:
info:eu-repo/semantics/embargoedAccess