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Poly(amide-ester)s fromp-aminobenzoic acid

✍ Scribed by Huang, Samuel J.; Kim, Soo Hyun

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
199 KB
Volume
46
Category
Article
ISSN
0959-8103

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✦ Synopsis

Poly(amide-ester)s containing p-aminobenzoic acid derived from three di †erent diols (1,6-hexanediol, 1,4-butanediol, and trans-1,4-cyclohexanedimethanol) and two di †erent acid chlorides (sebacoyl and adipoyl chloride) were synthesized by melt polymerization. The thermal and viscoelastic behaviour has been investigated and related to the chemical composition. All of the polymers synthesized showed an inherent viscosity ranging from 0É26 to 0É47 dl g~1. The Poly(amide-ester)s prepared by melt polymerization showed a lower molecular weight and melting temperature than polymers prepared by solution polymerization. The lower melting points of the polymers prepared by melt polymerization were due either to the lower molecular weight or to breakage of intermolecular hydrogen bonding, which was attributed to amideÈester exchange reactions during polymerization.

1998 SCI.

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