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Effect of the nature and degree of crosslinking on Rose Bengal binding by DVB-, NNMBA-, HDODA- and TTEGDA-crosslinked poly(N-vinylpyrrolidone)s

✍ Scribed by MG Gigimol; Beena Mathew

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 191 KB
Volume: 52
Category: Article
ISSN: 0959-8103
DOI: 10.1002/pi.1156

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✦ Synopsis

Abstract

Poly(N‐vinylpyrrolidone)s with 2–20 mol% DVB, NNMBA, HDODA and TTEGDA crosslinkings were prepared by suspension polymerisation. The binding of Rose Bengal by these poly(N‐vinylpyrrolidone)s was followed by a batch equilibration method. In order to optimise the conditions of dye binding, the effect of the concentration of Rose Bengal solutions, temperature and pH were followed. Kinetic studies showed that the binding of Rose Bengal by poly(N‐vinylpyrrolidone)s is a phase boundary process followed by a three‐dimensional diffusion. Copyright © 2003 Society of Chemical Industry

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