Synthesis and properties of related polyoxadiazoles and polytriazoles

E.R. Hensema, M.E.R. Sena, M.H.V. Mulder, C.A. Smolders

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New aromatic poly-1,2,4-triazoles and poly-1,3,4-oxadiazoles are studied as thermally stable membrane materials. Various groups were introduced onto the pendant phenyl groups of poly-1,2,4-triazoles. Glass transition temperature, degradation temperature, and cold crystallization behavior were studied as a function of these groups. Cold crystallization appeared to be highly sensitive to macromolecular regularity. The solubility of poly-1,3,4-oxadiazoles was highly improved upon incorporation of 5-t-butylisophthalic, 1,1,3-trimethyl-3-phenylindane, 4,4-(2,2-diphenyl) hexafluoro propane, and diphenyl ether groups into the polymeric main chain, whereas the high glass transition temperatures and degradation temperatures typical for aromatic poly-1,3,4-oxadiazoles were maintained.
Original languageEnglish
Pages (from-to)527-537
Number of pages11
JournalJournal of polymer science. Part A: Polymer chemistry
Issue number32
Publication statusPublished - 1994


  • Cold crystallization
  • Polyhydrazide
  • Poly-1,3,4-oxadiazoles
  • Poly-1,2,4-oxadiazoles


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