Poly-schiff bases—II. Synthesis and characterization of polyetherketoimines

✍ Scribed by Susanta Banerjee; Chhaya Saxena; Pranav K. Gutch; Dinesh C. Gupta

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 378 KB
• Volume: 32
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(95)00178-6

✦ Synopsis

Six new poly-Schiff bases have been synthesized by solution polycondensation of six different diamines with 4,4'-aryl bis-(oxy)-bis acetophenone. The synthesized polymers were characterized by viscosity measurement, elemental analyses, i.r., X-ray diffraction, and differential scanning calorimetry. T'he thermal stability of the polymers was evaluated by thermogravimetric and isothermal gravimetric analysis. The polymers cured at a high temperature by the opening of -C(CH,)=N-linkages. The electrical conductivities of the virgin and iodinedoped polymers are as high as 10-"-10-'6 and 10-9-10-6S/cm, respectively, at 30°C. Variation in the electrical conductivity (a) with temperature followed the empirical relation D = uOe-Ea'"T.