Study of kinetics of thermal degradation and to determine the activation energies of polyamides based on s-triazine

A series of ten polyamides was prepared by the high-temperature polycondensation of 4,6-bis(N-(4-(benzoylchloride)amino))-2-(N-phenyl- piperazin-1-yl)-1,3,5-triazine with different aromatic and aliphatic diamines. The synthesized polyamides were analyzed by physico-chemical properties such as solubi...

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Bibliographic Details
Published in:Journal of the Indian Chemical Society 2023-07, Vol.100 (7), p.101032, Article 101032
Main Authors: Tailor, R.B., Akbari, V.K., Belim, M.A., Desai, H.N., Patel, P.B., Patel, P.S., Patel, K.C.
Format: Article
Language:English
Subjects:
Activation energy
High thermal stability
Polycondensation
Stability
Thermal degradation
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Summary:A series of ten polyamides was prepared by the high-temperature polycondensation of 4,6-bis(N-(4-(benzoylchloride)amino))-2-(N-phenyl- piperazin-1-yl)-1,3,5-triazine with different aromatic and aliphatic diamines. The synthesized polyamides were analyzed by physico-chemical properties such as solubility, density, viscosity etc. The structure of prepared polyamides was evaluated by 1H NMR and FTIR spectrum. Thermogravimetric analysis used to study the kinetics of thermal degradation of some synthesized polyamides. Broido, Horowitz & Metzger, Coats Redfern and Chan et al. models were applied to respective thermograms to determine the activation energy (Ea). Activation energy data shows that the polyamides obtained from aromatic diamine has greater stability than the polyamides obtained from aliphatic amine. [Display omitted] •The synthesized polyamides are thermally stable and useful for high-temperature applications•The polyamides have good solubility in some common organic solvents so they can be reusable and environmentally friendly.•Polyamides can be used as engineering plastic material.•The kinetics of thermal degradation of synthesized polymers were analyzed as per Broido, Horowitz-Metzger, Coats-Redfern, and Chan et al. to determine the activation energy (Ea).•Huggins and Kraemer plots were used to evaluate intrinsic viscosity.•The physico-chemical properties like solubility, density, and viscosity were determined for the synthesized polymers.•The synthesized polyamides were analyzed for FTIR and 1H NMR to confirm their structures.
ISSN:0019-4522
DOI:10.1016/j.jics.2023.101032