Synthesis and characterization of sulfonated copolyethersulphones (S-PES) having block of unsolfonated PES units (Contributo in atti di convegno)

Type
Label
  • Synthesis and characterization of sulfonated copolyethersulphones (S-PES) having block of unsolfonated PES units (Contributo in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • A.Scamporrino, F.Samperi, G.Cicala, R.Mendichi (2011)
    Synthesis and characterization of sulfonated copolyethersulphones (S-PES) having block of unsolfonated PES units
    in XX Convegno Italiano di Scienza e Tecnologia delle Macromolecole (AIM), TERNI
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A.Scamporrino, F.Samperi, G.Cicala, R.Mendichi (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • 4 - 8 Settembre 2011 , (2011) (Conference Proceeding -Oral) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Abstract: Polyethersulphones are a class of polyaromatics of high importance for special applications which includes toughening modifiers for epoxy resins, adhesives for metal to metal bonding, membranes for separate gaseous and solid substances and membranes for fuel cells (PEMFC). In the field of PEMFC perfluorosulfonic acid ionomers such as NafionĀ® and FlemionĀ® have made a great breakthrough, and sulfonated polyethersulphones (S-PES) constitute an alternative promising class of materials owing of their high mechanical strength and high chemical, thermal and oxidative stabilities. The present contribute deals with the synthesis and characterization of some sulfonated copolyethersulphones. The synthetic approach differs from the post sulfonation approach traditionally reported in the literature, it is based on the use of sulfonated monomers which are then reacted with previously synthesized telechelic hydoxy-ended poly(ether sulphone)s. Combining the MALDI-TOF MS and 1H-NMR analyses, with SEC-Viscometry and TGA measurements, we demonstrate a powerful tool to characterize the chemical composition, end chains, degree of sulfonation and molecular mass distribution of disulfonated poly(arylene ether sulfone) copolymers. (literal)
Titolo
  • Synthesis and characterization of sulfonated copolyethersulphones (S-PES) having block of unsolfonated PES units (literal)
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