Efficient, 'one-pot' synthesis of suspension crosslinked sulfonated polystyrene via a Friedel-Crafts reaction

Theodoropoulos, AG; Bouranis, DL; Valkanas, GN

dc.contributor.author	Theodoropoulos, AG	en
dc.contributor.author	Bouranis, DL	en
dc.contributor.author	Valkanas, GN	en
dc.date.accessioned	2014-03-01T01:41:13Z
dc.date.available	2014-03-01T01:41:13Z
dc.date.issued	1992	en
dc.identifier.issn	00218995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23422
dc.subject.other	Crosslinking	en
dc.subject.other	Friedel-Crafts reaction	en
dc.subject.other	Ion exchange	en
dc.subject.other	Molecular weight	en
dc.subject.other	Sulfuric acid	en
dc.subject.other	Suspensions (fluids)	en
dc.subject.other	Synthesis (chemical)	en
dc.subject.other	Crosslinking ratio	en
dc.subject.other	Degree of crosslinking	en
dc.subject.other	Ion exchange capacity	en
dc.subject.other	Sulfonated polystyrenes	en
dc.subject.other	Polystyrenes	en
dc.title	Efficient, 'one-pot' synthesis of suspension crosslinked sulfonated polystyrene via a Friedel-Crafts reaction	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.1992.070460817	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.1992.070460817	en
heal.publicationDate	1992	en
heal.abstract	A suspension technique leading to macronet ionic resins is described based on a single reactor process. The procedures demonstrate sulfuric acid as a polar suspending medium that can act as a sulfonating agent, a Friedel-Crafts catalyst, and a crosslinking agent. The sulfonation reaction was finally completed using sulfuric acid excess, or oleum 65%. High yields were obtained for the crosslinking and the sulfonation reaction, while the final products were characterized by using ion-exchange capacity measurements, U.V. spectra, and determination of the degree of crosslinking. The number average molecular weight between crosslinks and the ion-exchange capacity H+ → Na+ of the resins was decreasing by increasing the nominal crosslinking ratio.	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.1992.070460817	en
dc.identifier.volume	46	en
dc.identifier.issue	8	en
dc.identifier.spage	1461	en
dc.identifier.epage	1465	en