Poly(vinyl alcohol) (PVA) cryogels, which are formed as a result of freezethaw treatment of concentrated solutions of the polymer, were studied in respect to the amount of gel and sol fractions in these heterogeneous macroporous gel materials depending on the conditions of the thawing step of simila
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Study of cryostructuration of polymer systems. XVII. Poly(vinyl alcohol) cryogels: Dynamics of the cryotropic gel formation
β Scribed by Vladimir I. Lozinsky; Lilija G. Damshkaln
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 118 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0021-8995
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Freeze-thaw treatment of low-concentrated (Ο½C\*) aqueous solutions of poly(vinyl alcohol) (PVA) results in the formation of a cryoprecipitate fraction. It is shown that the efficiency of such a process (the yield of PVA cryoprecipitation) depends on the initial polymer concentration in the solution