The Effect of the Oxidant Used During Polymerization on the Solid-state Decomposition Kinetics of Poly(4-methyl Catechol)

Abstract

Herein, the oxidative polymerization of 4-methyl catechol using different oxidants including NaOCl, H2O2, and air were reported. Potassium hydroxide solution was used as the reaction solvent and polymerization studies were carried out between 323 and 363 K. Optimum reaction conditions of the polymerization were established and NaOCl was found as the most active oxidant. The structure and characterization of the polymer using FT-IR, ultraviolet-visible (UV-Vis), 1H-NMR, 13C-NMR, thermogravimetry and size exclusion chromatography were confirmed. In addition, the relationship between molar mass distribution of polymer and kinetics parameters such as activation energy, pre-exponential factor of decomposition process was investigated. For this purpose, methods based on multiple heating rates such as Flynn-Wall-Ozawa, Friedman, Tang, Kissinger-Akahira-Sunose, and Kissinger were used. The results obtained show that activation energy increased with an increase of molar mass.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Physical Chemistry; Analytical Chemistry; Polymer Sciences; Inorganic Chemistry; Measurement Science and Instrumentation; Oxidative Polymerization; Thermal Analysis; Non-Isothermal Decomposition Kinetics

International Standard Serial Number (ISSN)

1388-6150

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2012 Springer Verlag, All rights reserved.

Publication Date

01 Jun 2012

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