Chemical treatment of membranes of a polymer blend: Mechanism of the reaction of hypochlorite with poly(vinyl pyrrolidone)

Wienk, I.M. and Meuleman, E.E.B. and Borneman, Z. and Boomgaard van den, Th. and Smolders, C.A. (1995) Chemical treatment of membranes of a polymer blend: Mechanism of the reaction of hypochlorite with poly(vinyl pyrrolidone). Journal of Polymer Science, Part A: Polymer chemistry, 33 (1). pp. 49-54. ISSN 0887-624X

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Abstract:	Sodium hypochlorite solutions are used to treat membranes prepared from a polymeric blend containing poly(vinyl pyrrolidone) (PVP) to increase their water permeability. Sodium hypochlorite affects the membrane material in such a way that PVP is selectively removed from the membrane matrix. The mechanism of the reaction between hypochlorite and PVP is investigated by several chemical analysis techniques of the reaction products. Strong indications are found that the reaction involves chain scission of PVP according to a radical mechanism.
Item Type:	Article
Copyright:	© 1995 Wiley InterScience
Faculty:	Science and Technology (TNW)
Research Group:	Membrane Science and Technology (MST)
Link to this item:	http://purl.utwente.nl/publications/71213
Official URL:	http://dx.doi.org/10.1002/pola.1995.080330105
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