Abstract
4,4′-hexafluoroisopropylidene-2,2-bis-(phthalic anhydride) has been reacted with 2 moles of L-tyrosine methyl ester in the refluxing N,N′-dimethylformamide to obtain 4,4′-(hexafluoroisopropylidene)-N,N′-bis-(phthaloyl-L-tyrosine methyl ester) as a novel fluorinated diol for the first time. A series of new nanostructure poly(ester-imide)s (PEIs) was synthesized by the polycondensation reaction of several amino acid based-diacid chloride with the synthesized diol. The PEIs were obtained in good yields and moderate inherent viscosity. On the basis of thermogravimetric analysis data, such polymers are thermally stable and can be classified as self-extinguishing macromolecules. Morphology study of resulting PEIs showed the nanostructure phenomena of these polymers by the FE-SEM technique.
Published Version
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