TY - JOUR
T1 - Chemical treatment of membranes of a polymer blend
T2 - mechanism of the reaction of hypochlorite with poly(vinyl pyrrolidone)
AU - Wienk, I.M.
AU - Meuleman, E.E.B.
AU - Borneman, Z.
AU - van den Boomgaard, Th.
AU - Smolders, C.A.
PY - 1995
Y1 - 1995
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0029197260&partnerID=8YFLogxK
U2 - 10.1002/pola.1995.080330105
DO - 10.1002/pola.1995.080330105
M3 - Article
AN - SCOPUS:0029197260
SN - 0887-624X
VL - 33
SP - 49
EP - 54
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 1
ER -