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Chemistry and properties of poly(arylene ether benzoxazole)sSeveral new poly(arylene ether benzoxazole)s (PAEBs) were prepared by the nucleophilic displacement reaction of activated aromatic difluorides with two novel bis(hydroxyphenyl benzoxazole), using potassium carbonate. The 6F-containing PAEBs exhibited better solubility and higher Tgs than did the 6,6'-bis-(2-(4-hydroxyphenyl)benzoxazole)-derived polymers. Several of the 6,6'bis(2-(4-hydroxyphenyl)benzoxazole)-derived polymers exhibited crystallinity by DSC and wide-angle X-ray diffraction. Unorientated thin film properties of the 6F-containing PAEBs were comparable to those of other 6F-containing PAEBS that were previously reported. The chemistry and the physical and mechanical properties of the above polymers are discussed.
Document ID
19920074417
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smith, J. G., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Connell, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Hergenrother, P. M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Polymer
Volume: 33
Issue: 8 19
ISSN: 0032-3861
Subject Category
Chemistry And Materials (General)
Accession Number
92A57041
Funding Number(s)
CONTRACT_GRANT: NAG1-448
Distribution Limits
Public
Copyright
Other

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