Syntheses and characterization of polycondensation products derived from β‐(4‐methoxy‐3‐methyl)phenylglutaconic acid and diols

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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Synthesis and thermal stability of polyesters and polyamides fromβ‐(2‐methoxy‐5‐methylphenyl) glutaconic acid, diols, and diamines

Mehta

Dave

Patel

1987

Angew. Makromol. Chem.

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Unsaturated Polymides From β(2-Ethoxy-5-methylphenyl) Glutaconic Acid and Their Characterization

Raj

Mehta

Dave

et al. 1991

Journal of Macromolecular Science: Part A - Chemistry

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Someunsaturated polyamide resins were synthesized by condensing @2-ethoxy-5-methylphenyl) glutaconic acid with six diamines The polycondensates were characterized by IR. TG, DSC: VPO and elemental analysis. Most of the polymers were found to decomposi in the range of -190 to 6OO0C. They are brownblack in nature. The kinetics of decomposition was studied. The kinetic parameters were evaluated by the method of Broido. It was observed that the energy of acti~ration of polycondensates depends upon the presence cf diamine components in the polymer.

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Synthesis and Thermal Stability of Unsaturated Polyamides

Patel¹,

Patel²,

Patel

1992

High Performance Polymers

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Unsaturated polyamides were prepared by condensing /3(4-ethoxyphenyl) glutaconic acid with various aromatic diamines. The polycondensates were characterized by IR spectroscopy, vapor phase osmometry, thermogravimetric analysis, differential scanning calorimetry and elemental analysis. All resins were found to decompose in the range '-210-600 °C. The kinetics of decomposition were studied. The results indicated that the resins possess reasonably good thermal stability.

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Syntheses and characterization of polycondensation products derived from β‐(4‐methoxy‐3‐methyl)phenylglutaconic acid and diols

Abstract: 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.

Cited by 3 publications

References 6 publications

Synthesis and thermal stability of polyesters and polyamides fromβ‐(2‐methoxy‐5‐methylphenyl) glutaconic acid, diols, and diamines

Synthesis and thermal stability of polyesters and polyamides fromβ‐(2‐methoxy‐5‐methylphenyl) glutaconic acid, diols, and diamines

Unsaturated Polymides From β(2-Ethoxy-5-methylphenyl) Glutaconic Acid and Their Characterization

Synthesis and Thermal Stability of Unsaturated Polyamides

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