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Synthesis and properties of polyamides based on (±)-norbornane-2 endo, 3exo-dicarboxylic acid

✍ Scribed by Michael Flugel; Walter Heitz

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
236 KB
Volume
18
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

A series of polyamides was synthesized by interfacial polycondensation of (±)‐norbornane‐2‐endo,3__exo__‐dicarbonyl dichloride with various aliphatic diamines, H~2~N(CH~2~)~m~NH~2~ with m = 2, 3, 4, 6, 8, 10. The use of chlorobenzene as organic solvent is favourable for the preparation of high molecular weight polymers. Inherent viscosities of 0.51 – 1.63 dL/g were obtained. Differential scanning calorimetry of polymers with m = 3, 4, 6, 8, 10 revealed glass transition temperatures between 119 and 189°C, whereas no T~g~ could be determined for m = 2. The 5% weight loss temperatures ranged from 295 to 371°C in nitrogen atmosphere. The polymers are amorphous as shown by X‐ray and DSC experiments.

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