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International Journal of Polymer Science
Volume 2014, Article ID 643789, 10 pages
Research Article

Copolymerization of 4-Acetylphenyl Methacrylate with Ethyl Methacrylate: Synthesis, Characterization, Monomer Reactivity Ratios, and Thermal Properties

1Department of Chemistry, Faculty of Science and Arts, University of Adiyaman, 02040 Adiyaman, Turkey
2Physics Engineering Department, Faculty of Science and Letters, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey

Received 27 August 2013; Revised 2 November 2013; Accepted 3 November 2013; Published 4 February 2014

Academic Editor: Giridhar Madras

Copyright © 2014 Gamze Barim and Mustafa Gokhun Yayla. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Methacrylates have high glass transition temperature () values and high thermal stability. A new methacrylate copolymer, poly(4-acetylphenyl methacrylate-co-ethyl methacrylate) (APMA-co-EMA), was synthesized. The thermal behaviors of copolymers were investigated by differential scanning calorimetry and thermogravimetric analysis. They behaved as new single polymers with single ’s and the thermal stability of the copolymers increased with increasing 4-acetylphenyl methacrylate (APMA) fraction, leading to the manufacture of copolymers with desired values. Structure and composition of copolymers for a wide range of monomer feed ratios were determined by Fourier transform infrared (FT-IR) and 1H-nuclear magnetic resonance (1H-NMR) spectroscopic techniques. Copolymerization reactions were continued up to 40% conversions. The monomer reactivity ratios for copolymer system were determined by the Kelen-Tüdös (; ) and extended Kelen-Tüdös (; ) methods and a nonlinear least squares (; ) method.