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Thermal degradation studies on PMMA–HET acid based oligoesters blends

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Abstract

Imparting thermal stability to polymethyl methacrylate (PMMA) without affecting its optical clarity is attempted by incorporating HET acid based oligoesters. Pure PMMA and PMMA containing five and 20 wt% of four different oligoesters are separately prepared using bulk polymerization. The thermal properties of the materials studied using DSC, TG, TG–FTIR and Pyr–GC–MS are presented. The main volatile degradation products identified are CO, HCl, CO2, H2O, hexachlorocyclopentadiene, hexachloroendomethylene tetrahydrophthalic acid/anhydride and methyl methacrylate. A detailed mechanism for the influence of the degradation products of HET acid based oligoesters on the thermal degradation of PMMA is also presented.

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Acknowledgements

The authors gratefully acknowledge the Management and the Principal of Kamaraj College of Engineering and Technology, K. Vellakulam Post and Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi for their encouragement and providing facilities to carry out this work successfully. The authors thank Prof. Dr. J. K. Fink, Institut für Chemie der Kunststoffe, Montanuniversität Leoben, A-8700 Leoben, Austria for his help in pyrolysis studies.

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Authors and Affiliations

  1. Department of Polymer Technology, Kamaraj College of Engineering and Technology, SPGC Nagar, K. Vellakulam Post, 625701, India

    Thangamani Rajkumar & Chinnaswamy Thangavel Vijayakumar

  2. Post-graduate Department of Chemistry, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, 626124, India

    Palanichamy Sivasamy

  3. Inorganic and Physical Chemistry, Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500007, India

    Bojja Sreedhar

  4. Department of Chemistry, Marquette University, P.O. Box 1881, Milwaukee, WI, 53201, USA

    Charles A. Wilkie

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  1. Thangamani Rajkumar
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  2. Chinnaswamy Thangavel Vijayakumar
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  3. Palanichamy Sivasamy
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  5. Charles A. Wilkie
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Correspondence to Chinnaswamy Thangavel Vijayakumar.

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Rajkumar, T., Vijayakumar, C.T., Sivasamy, P. et al. Thermal degradation studies on PMMA–HET acid based oligoesters blends. J Therm Anal Calorim 100, 651–660 (2010). https://doi.org/10.1007/s10973-009-0266-2

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