Summary
Thermally stable and optically active poly(amide-imide)s (PAIs) have been synthesized and their properties such as optical activity, solubility, thermal stability were studied. Polymers were synthesized by solution polymerization of 4,4’–(hexafluoroisopropylidene)-N,N’-bis-(phthaloyl-L-methionine) diacid chloride and various aromatic diamines by three different methods. The compounds obtained were characterized by elemental C, H and N analysis, solubility, FTIR, 1H NMR and 19F NMR spectroscopy. Thermogravimetric curves were also recorded. All data agree with the proposed structures.
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Mallakpour, S., Kowsari, E. Thermally Stable and Optically Active Poly(amide-imide)s Derived from 4,4’–(Hexafluoroisopropylidene)-N,N’-bis-(phthaloyl-L-methionine) Diacid Chloride and Various Aromatic Diamines: Synthesis and Characterization. Polym. Bull. 57, 169–178 (2006). https://doi.org/10.1007/s00289-006-0549-8
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DOI: https://doi.org/10.1007/s00289-006-0549-8