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Aspects of crosslinking sulfonated polyacrylamides from rheological studies on their gels

1997; Wiley; Volume: 64; Issue: 6 Linguagem: Inglês

10.1002/(sici)1097-4628(19970509)64

1097-4628

Karine Sigale, Aziz Omari,

Membrane Separation and Gas Transport

Journal of Applied Polymer ScienceVolume 64, Issue 6 p. 1067-1072 Aspects of crosslinking sulfonated polyacrylamides from rheological studies on their gels Karine Sigale, Laboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, FranceSearch for more papers by this authorAziz Omari, Corresponding Author Laboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, FranceLaboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, France===Search for more papers by this author Karine Sigale, Laboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, FranceSearch for more papers by this authorAziz Omari, Corresponding Author Laboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, FranceLaboratoire MASTER, ENSCPB, Avenue Pey Berland, 33 402 Talence-Cedex, France===Search for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1097-4628(19970509)64:6 3.0.CO;2-JCitations: 13AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat Abstract Crosslinking of sulfonated polyacrylamide by zirconium requires some acrylate sites on polymer chain, and a schematic reaction is proposed to describe this process. Moreover, gelation kinetics is found to be fairly proportional to polymer acrylate site content. On the other hand, decreasing sulfonation level or solvent salt concentration is shown to result in increasing the system gelation, and an explanation of such behavior is attempted. Furthermore, we find that gelation kinetic is highly dependent on zirconium concentration in an unusual manner. So, for a given polymer sample, a maximum of zirconium concentration exists above which gelation kinetic decreases until it vanishes. This behavior is interpreted by existence of a background reaction where highly stable zirconium complexes are formed. This reaction indeed competes against the polymer cross-linking process and zirconium concentration increases. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1067–1072, 1997 Citing Literature Volume64, Issue69 May 1997Pages 1067-1072 RelatedInformation