Abstract
Polymers with heteroaromatic repeat units have been known for many years to exhibit good thermal and oxidative stability. Polybenzimidazoles (1), polybenzothiazoles (2), and polybenzoxazoles (3,4) were first reported in the late ‘50’s and early ‘60’s and have since been under widespread investigation. Both AA-BB and AB monomer systems have been employed in the synthesis of high molecular weight polymers. (5) The thermal stability in nitrogen atmosphere of the completely aromatic AB polymers prepared from the various 3,4-disubstituted benzoic acids decreased in the order benzimidazoles>benzothiazole>benzoxazole. In air, however, all three types of polymers possessed similar stability.
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© 1984 Plenum Press, New York
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Mathias, L.J., Ahmed, S.U., Livant, P.D. (1984). Substituted Polyamides as Precursors for Alkyl and Alkenyl Polybenzoxazoles. In: Culbertson, B.M., Pittman, C.U. (eds) New Monomers and Polymers. Polymer Science and Technology, vol 25. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4619-7_4
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DOI: https://doi.org/10.1007/978-1-4684-4619-7_4
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