Solid State Decomposition Kinetics of Green Light Emitting Polyphenol Nanoparticles

Abstract

The reaction process and kinetic parameters related to the solid state decomposition of green light emitting polyphenol nanoparticles (GLPN) synthesized by oxidative polymerization were investigated by thermogravi metric analysis technique (TG) at different heating rates. TG/DTG-DTA curves showed that the thermal decom position occurred mainly in one stages. The kinetic parameters related to solid state decomposition stage of GLPN were calculated by using the methods based on multiple heating rates such as Kissinger, Kim-Park (KM), Tang, Flynn-Wall-Ozawa (FWO), Friedman (FR) and Kissinger-Akahira-Sunose (KAS). The activation energies obtained by Kissinger, Kim-Park, Tang, KAS, FWO, and FR methods were found to be 157.5, 158.0, 166.9, 165.8, 167.1 kJ/mol, respectively, in a wide range of conversion. Furthermore the reaction process related to the solid state decomposition stage of GLPN was also determined by using integral procedure Coats-Redfern (CR) and master plots. The analysis of the so-called methods showed that the solid state decomposition mechanism of polyphenol derivatives nanoparticles in N2 went to the Dn mechanism (dimensional diffusion, n = 6).

Department(s)

Materials Science and Engineering

Keywords and Phrases

Green Light Emitting Nanoparticles (GLPN); Thermogravimettric analysis; Activation energy; Decomposition mechanism

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2026 American Scientific Publishers, All rights reserfef

Publication Date

2016-02-01

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