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Chemistry and properties of poly(arylene ether 1,3,4-oxadiazole)s and poly(arylene ether 1,2,4-triazole)sPoly(arylene ether)s containing l,3,4-oxadiazole and 1,2,4-triazole units were prepared by the aromatic nucleophilic displacement reaction of bisphenol oxadiazole and bisphenol triazole compounds with activated aromatic dihalides. The polymers exhibited glass transition temperatures (Tg) ranging from 182 to 242 C, and several polymers exhibited melting transitions (Tm) ranging from 265 to 390 C. Inherent viscosities ranged from 1.02 to 3.40 dl/g, indicating relatively high molecular weights. Thin films exhibited tensile strengths, moduli, and elongations at 23 C of 90-110 MPa, 2.7-3.6 GPa, and 4-7 percent, respectively. Titanium-to-titanium tensile shear specimens of a poly(arylene ether 1,3,4-oxadiazole) exhibited tensile shear strengths at 23 and 150 C of 22.1 and 17.9 MPa, respectively.
Document ID
19930068879
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Connell, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Hergenrother, P. M.
(NASA Langley Research Center Hampton, VA, United States)
Wolf, P.
(BASF AG Ludwigshafen, Germany)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Polymer
Volume: 33
Issue: 16
ISSN: 0032-3861
Subject Category
Nonmetallic Materials
Accession Number
93A52876
Distribution Limits
Public
Copyright
Other

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