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Title of Journal: J Polym Res

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Abbravation: Journal of Polymer Research

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Springer Netherlands

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DOI

10.1016/0305-0491(87)90143-x

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1572-8935

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Amineterminated aromatic and semiaromatic hyperb

Authors: Saima Shabbir Sonia Zulfiqar Muhammad Ilyas Sarwar
Publish Date: 2011/03/26
Volume: 18, Issue: 6, Pages: 1919-1929
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Abstract

A facile synthetic approach to aromatic and semiaromatic amineterminated hyperbranched polyamides via direct polymerization of triamine B3 with different diacid chlorides A2 was explored An aromatic triamine 135tris4′aminophenylcarbamoylbenzene TAPCB was synthesized and monomers were characterized by elemental analysis FTIR 1H and 13C NMR spectroscopy Finally the polycondensation reaction of TAPCB with terephthaloyl chloride TPC isophthaloyl chloride IPC sebacoyl chloride SC and adipoyl chloride AC resulted in the preparation of four hyperbranched polyamides ie HBPA 1 2 3 and 4 respectively FTIR and 1H NMR analyses confirmed the structures of the ensuing polymers and DB was found between 051–055 These thermally stable amorphous HBPAs were soluble in polar aprotic solvents at room temperature having glass transition temperatures Tg between 138–198 °C Inherent viscosities ηinh and weight average molecular weights Mw were in the range of 027–035 dL/g and 13 × 104–27 × 104 respectively Future prospects are envisaged

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