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Liquid chromatographic characterization of PMR-15 resin and prepregA liquid chromatographic method has been developed capable of providing a chemical fingerprint of PMR-15 resin solutions and prepreg. The amounts of two of the monomers can be quantified so their experimentally determined molar ratio can be compared to the formulated one. Only the monomers were detected in fresh resin solution, whereas several additional components, resulting from an association or reaction between the norbornenyl endcap and the amine, were detected in a resin solution aged for three days. Two commercial prepregs exhibited fingerprints similar to that of laboratory material, but three others contained additional components corresponding to higher esters and nadimides.
Document ID
19800047916
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Reed, K. E. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: Rising to the challenge of the ''80s; Annual Conference and Exhibit
Location: New Orleans, LA
Start Date: February 4, 1980
End Date: February 8, 1980
Accession Number
80A32086
Distribution Limits
Public
Copyright
Other

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