Five new copolyesters 3 ae were prepared by reacting P-(4-methoxy-3 methy1)phenylglutaconic acid dichloride (1 b) with diols 2ae. The polymers were characterized by IR and TG. All polymers were found to decompose in the range of -200 to =65O"C.
Some polyester and polyamide resins were prepared by condensing p(2-methoxy-5methylphenyl) glutaconic acid with diols and diamines. The polycondensates were characterized by IR, TG, DSC, VPO, and elemental analysis. Some polycondensates were found to be soluble in acetone, dimethylformamide, and dioxane. All polymers were found to decompose in the range of -200 to -600°C. Their softening points are in the range of -90 to -190°C. They are brown black in colour. The kinetics of decomposition were studied. The kinetic parameters were evaluated by the method of Broido. It is observed that the energy of activation of polycondensates depends upon the presence of diol and diamine components in the polymer.
ZUSAMMENFASSUNG:Es wurden Polyester-und Polyamidharze durch Kondensation von fb(2-Methoxy-5-methylphenyl)glutaconslure mit Diolen und Diaminen hergestellt. Die Polykondensate wurden mit Hilfe von IR, TG, DSC, VPO und durch Elementaranalyse charakterisiert. Einige Polykondensate waren in Aceton, Dimethylformamid und Dioxan 16slich. Alle Polymeren zersetzten sich zwischen ux) und 600°C. Ihr Enveichungspunkt lag zwischen 90 und 19o"C, sie waren braunschwarz geflrbt. Die Kinetik der Zersetzung wurde untersucht. Die kinetischen Parameter sind nach der Methode von Broido ausgewertet worden. Es zeigte sich, daI3 die Aktivierungsenergie der Polykondensate von der Anwesenheit der Diol-und Diaminkomponenten im Polymeren abhlngt .
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