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Synthesis of Phthalonitrile Resins Containing Ether and Imide Linkages.
Patent, Filed 16 May 89, patented 26 Mar 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
Imide-containing phthalonitrile monomers are prepared from a phthalonitrile and an aromatic dianhydride. The monomer and a method for preparing the monomer is disclosed. These monomers are synthesized into heat resistant polymers and copolymers with aromatic ring structure incorporating imide and ether linkages. The synthesis of the high temperature thermosetting polymers and copolymers is also disclosed.
APPROVED FOR PUBLIC RELEASE