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Preparation of strong acid network particles. The role of the catalyst in a multiple reaction environment

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dc.contributor.author Theodoropoulos Athanasios, G en
dc.date.accessioned 2014-03-01T01:09:30Z
dc.date.available 2014-03-01T01:09:30Z
dc.date.issued 1993 en
dc.identifier.issn 1060-1325 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/11044
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0027610873&partnerID=40&md5=45330d2c275388c2feaed6bac336d876 en
dc.subject.classification Polymer Science en
dc.subject.other Agents en
dc.subject.other Aromatic compounds en
dc.subject.other Catalysis en
dc.subject.other Catalysts en
dc.subject.other Crosslinking en
dc.subject.other Friedel-Crafts reaction en
dc.subject.other Ion exchange en
dc.subject.other Reaction kinetics en
dc.subject.other Sulfonation en
dc.subject.other Sulfuric acid en
dc.subject.other Suspensions (fluids) en
dc.subject.other Swelling en
dc.subject.other Chloromethylated xylene en
dc.subject.other Ionic networks en
dc.subject.other Macronet sulfonated polystyrene en
dc.subject.other Polystyrenes en
dc.title Preparation of strong acid network particles. The role of the catalyst in a multiple reaction environment en
heal.type journalArticle en
heal.language English en
heal.publicationDate 1993 en
heal.abstract A rapid preparative route to macronet sulfonated polystyrene is described, based on protonic acid catalysis of a complicated Friedel-Crafts reactions system. Post-polymerization crosslinking was used, employing a chloromethylated xylene derivative as the crosslinking agent and sulfuric acid as a catalyst. The same reagent was used as medium for the introduction of sulfonic groups on styrene units and as suspending medium, in order to achieve spherical particles. One sulfonating agent, that was initially introduced to the reactor and high temperatures were used, in spite of previously mentioned procedures, thus leading to a vigorous one-step process. Following kinetic characterization, it was demonstrated that the selection of the reaction conditions leads to simultaneous crosslinking and sulfonation. High ion-exchange capacities, enhanced swelling ratios and gel-type networks were obtained according to this particular suspension technique. en
heal.publisher MARCEL DEKKER INC en
heal.journalName Macromolecular Reports - International Rapid Publication Supplement to the Journal of Macromolecular Science-Pure and Applied Chemistry en
dc.identifier.isi ISI:A1993LA41500013 en
dc.identifier.volume A30 en
dc.identifier.issue SUPP 3-4 en
dc.identifier.spage 287 en
dc.identifier.epage 294 en


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