Abstract
2,4-diaminotriphenylamine (2) was synthesized via the cesium fluoride-mediated aromatic substitution reaction of 1-fluoro-2,4-dinitrobenzene with diphenylamine, followed by palladium-catalyzed hydrazine reduction. A series of poly(amide-imide)s (PAIs) with inherent viscosities of 0.38–0.46 dL/g were prepared by triphenyl phosphite-activated polycondensation from the diamine monomer 2 with various monoimide- and diimide-dicarboxylic acids. All of the PAIs were readily soluble in a variety of organic solvents and formed strong and tough films via solution casting. These PAIs have moderately high glass transition temperatures in the range of 168–274 ○C and 10 % weight loss temperatures in excess of 447 ○C in nitrogen or in air.
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Hsiao, SH., Yang, CP., Chen, CW. et al. Synthesis and Properties of Novel Poly(amide-imide)s Derived from 2,4-diaminotriphenylamine and Imide Ring-Preformed Dicarboxylic Acids. J Polym Res 12, 289–294 (2005). https://doi.org/10.1007/s10965-004-5481-8
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DOI: https://doi.org/10.1007/s10965-004-5481-8