Syntheses and properties of related polyoxadiazoles and polytriazoles


Hensema, E.R. and Sena, M.E.R. and Mulder, M.H.V. and Smolders, C.A. (1994) Syntheses and properties of related polyoxadiazoles and polytriazoles. Journal of Polymer Science, Part A: Polymer chemistry, 32 (3). pp. 527-537. ISSN 0887-624X

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Abstract: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.
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Copyright:© 1994 Wiley InterScience
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