Investigation of thermal behavior of poly(2‐hydroxyethyl methacrylate‐co‐itaconic acid) networks |
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| Authors: | Tuncer Çaykara Cengiz Özyürek Ömer Kanto?lu |
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| Affiliation: | 1. Gazi University, Faculty of Art and Science, Department of Chemistry, 06500 Besevler, Ankara, Turkey;2. Nineteen May University, Faculty of Education, Department of Chemistry, 55139 Kurupelit, Samsun, Turkey;3. Ankara Nuclear Agriculture and Animal Research Center, Turkish Atomic Energy Authority, Ist. Yolu 30 km Kazan, 06983 Ankara, Turkey |
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| Abstract: | The thermal behavior of poly(2‐hydroxyethyl methacrylate) PHEMA] homopolymer and poly(2‐hydroxyethyl methacrylate‐co‐itaconic acid) P(HEMA/IA)] copolymeric networks synthesized using a radiation‐induced polymerization technique was investigated by differential scanning calorimetry, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The glass‐transition temperature (Tg) of the PHEMA homopolymer was found to be 87°C. On the other hand, the Tg of the P(HEMA/IA) networks increased from 88°C to 117°C with an increasing amount of IA in the network system. The thermal degradation reaction mechanism of the P(HEMA/IA) networks was determined to be different from the PHEMA homopolymer, as confirmed by thermogravimetric analysis. It was observed that the initial thermal degradation temperature of these copolymeric networks increased from 271°C to 300°C with IA content. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1602–1607, 2007 |
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| Keywords: | hydrogels synthesis thermal properties |
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