Synthesis,Characterization and Properties of Novel Poly(Ester-Amide-Urethane)s |
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Authors: | Shahram Mehdipour-Ataei Parvin Einollahy |
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Affiliation: | Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran |
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Abstract: | A diacid (TOBA) containing an ester group was synthesized by reaction of terephthaloyl chloride with 4-hydroxybenzoic acid. Reaction of the obtained diacid with thionyl chloride resulted in preparation of the related diacid chloride (TOBC). Nucleophilic substitution reaction of 4-aminophenol and also 5-amino-l-naphthol with the prepared diacid chloride afforded two aromatic diols containing ester and amide groups, respectively. Aromatic and semi-aromatic poly(ester-amide-urethane)s were prepared via addition polymerization of different diisocyanates with novel diols. The prepared polyurethanes showed improved thermal stability. |
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Keywords: | addition polymerization copolymerization polyurethanes synthesis thermal properties |
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