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Monomers for thermosetting and toughening epoxy resinsEight glycidyl amines were prepared by alkylating the parent amine with epichlorohydrin to form chlorohydrin, followed by cyclization with aqueous NaOH. Three of these compounds contained propargyl groups with postcuring studies. A procedure for quantitatively estimating the epoxy content of these glycidyl amines was employed for purity determination. Two diamond carbonates and several model propargly compounds were prepared. The synthesis of three new diamines, two which contain propargyloxy groups, and another with a sec-butyl group is in progress. These materials are at the dinitro stage ready for the final hydrogenation step. Four aromatic diamines were synthesized for mutagenic testing purposes. One of these compounds rapidly decomposes on exposure to air.
Document ID
19810017723
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Pratt, J. R.
(Mississippi Univ. for Women Columbus, MS, United States)
Date Acquired
September 4, 2013
Publication Date
June 1, 1981
Subject Category
Nonmetallic Materials
Report/Patent Number
NASA-CR-164479
APR-2
Report Number: NASA-CR-164479
Report Number: APR-2
Accession Number
81N26260
Funding Number(s)
CONTRACT_GRANT: NSG-1539
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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