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Name: 1,3-Bis(3,4-dicarboxyphenoxy-4-phenyl-2-propyl)benzene dianhydride [Bisphenol M diether dianhydride]/2,2'-Bis(trifluoromethyl) b
Database: NASA Langley Research Center Database
Category: Polyamides
Composition: Composition of BMDEDA - 1,3-Bis(3,4-dicarboxyphenoxy-4-phenyl-2-propyl)benzene dianhydride [Bisphenol M diether dianhydride] - A mixture of bisphenol M (34.65 g, 0.10 mole), 4-fluorophthalic anhydride (36.54g, 0.22 mole), spray dried KF (17.43g, 0.30 mole
Manufacturer: 1,3-Bis(4-hydroxyphenyl-2-propyl)benzene (bishpenol M) - Ken Seika Corp. 4-fluorophthalic anhydride - Occidental Chemical Corp.
Technical Readiness Level: N/A
Last Modified: 2003-07-14

Description:

• This material is a polyimide film which was created in an effort to identify potential liquid crystalline polyimides. Polyamic acid was prepared by the reaction of 1,3-Bis(3,4-dicarboxyphenoxy-4-phenyl-2-propyl)benzene dianhydride [Bisphenol M diether dianhydride] BMDEDA and 2,2'-Bis(trifluoromethyl) benzidine) (ABL-21) in DMAc under a nitrogen atmosphere at 23¡C. The thin film was cast from the polyamic acid solution and thermally imidized during a stage cure to 240¡C in flowing air.

Point of Contact:

• Catherine Fay
• NASA Langley Research Center
• c.c.fay@larc.nasa.gov