Abstract
A new fluorinated diamine, 3,5-diamino-4-methyl-2′,3′,5′,6′-tetrafluoro-4′-trifluoromethyldiphenyloxide, was synthesized by interaction of 2,6-diamino-p-cresol with perfluorotoluene via aromatic nucleophilic substitution. New aromatic polyimides with perfluorotolyl substituents were prepared by interaction of the synthesized diamine with aromatic tetracarboxylic acid dianhydrides under conditions of high-temperature polycyclocondensation in phenolic solvents. The resulting polyimides combine high thermal characteristics with solubility in organic solvents and reduced permittivity.
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