Synthesis and properties of polyamides of p-phenylenedioxydiacetic acid

✍ Scribed by Srinivasan, M. ;Scariah, K. J. ;Krishnamurthy, V. N. ;Rao, K. V. C.

• Book ID: 105335248
• Publisher: John Wiley and Sons
• Year: 1984
• Weight: 600 KB
• Volume: 22
• Category: Article
• ISSN: 0360-6376
• DOI: 10.1002/pol.1984.170220719

✦ Synopsis

Abstract

Several polyamides of p‐phenylenedioxydiacetic acid (PDDA) were synthesized by the low‐temperature solution polycondensation techniques. Six different diamines were condensed independently with p‐phenylenedioxydiacetyl chloride (PDC) in a mixture of N‐methyl pyrolidone (NMP) and hexamethyl phosphoramide (HMPA). The polymers were obtained in 80–95% yield and possessed inherent viscosities in the range 0.32–0.81 dL/g. The polymers were characterized by infrared (IR) and H^1^‐NMR spectra. The solubility, density, crystallinity, and thermal stability of the polyamides were also determined. A model diamide (MDA‐1) was also synthesized from aniline and PDC to confirm the formation of polyamides from diamines.