Synthesis and properties of hyperbranched polyamide-esters derived from 1,3,5-tris(4′-hydroxyphenylcarbamoyl)benzene |
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| Authors: | Saima Shabbir Zahoor Ahmad |
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| Affiliation: | a Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
b Department of Chemistry, Faculty of Science, Kuwait University, PO Box 5969, Safat 13060, Kuwait |
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| Abstract: | A novel aromatic triol was synthesized and polycondensed with various diacid chlorides resulting in the preparation of a series of hydroxy-terminated hyperbranched polyamide-esters without gelation. Structure and degree of branching of the ensuing polymers were confirmed by FTIR, 1H and 13C NMR analyses. These thermally stable polymers were found to be soluble in aprotic solvents. Inherent viscosities and Tg values lie in the range of 0.15-0.21 dL/g and 74-112 °C, respectively. |
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| Keywords: | Hyperbranched polyamide-ester Synthesis Characterization |
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