Polyimides. IV. Synthesis and characterization of fluorinated copolyimides
โ Scribed by Mukesh Kumar Madhra; Mamta Sharma; Susanta Banerjee
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 194 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
Random copolyimides with different proportions of a diamine component were prepared by polymerizing different compositions of diamines with various dianhydrides and imidized thermally to 260ยฐC. The imidization percent of poly(amic acid) was characterized at various temperatures by infrared spectrosc
Two new fluorinated diamine monomers, 3,3-diamino-5,5-bis(trifluoromethyl)biphenyl and 3,3 -diamino-6,6-bis(trifluoromethoxy)biphenyl, as well as a known nonfluorinated analog, 3,3 -diaminobiphenyl, were synthesized. Reaction of these diamines with rigid, highly rod-like dianhydrides produced poly(a