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Aliphatic-aromatic poly(ether amide)s containing oxyethylene units. Synthesis and characterization

✍ Scribed by José M. García; José G. de la Campa; Javier de Abajo

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
574 KB
Volume
34
Category
Article
ISSN
0887-624X

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✦ Synopsis

The synthesis and characterization of aromatic polyamides containing oxyethylene units is reported, and the differences observed in polycondensation yields, molecular weights, and molecular weight distributions, as a function of the method of synthesis, are discussed. Four diamines containing oxyethylene units and aromatic rings, meta and para oriented, and their corresponding hydrochlorides were prepared as condensation monomers to be combined with isophthaloyl chloride (IPC) and terephthaloyl chloride (TPC). High molecular weight polyamides were obtained by interfacial and low-temperature solution methods. Values of M,, up to 6 X lo4 g/mol and Mu up to 2 X lo5 g/mol could be measured by gel permeation chromatography using aromatic polyamide standards, and values of M n up to 2 X lo5 g/mol and Mu up to 5 X lo5 g/mol by using polystyrene standards. 0 1996

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