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Glycidyl methacrylate grafted natural rubber: Synthesis, characterization, and mechanical property

Authors

  • Punmanee Juntuek,

    1. School of Polymer Engineering, Institute of Engineering, Suranaree, University of Technology, Nakhon Ratchasima 30000, Thailand
    2. Center for Petroleum, Petrochemical and Advanced materials, Chulalongkorn University, Bangkok 10330, Thailand
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  • Chaiwat Ruksakulpiwat,

    1. Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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  • Praneee Chumsamrong,

    1. School of Polymer Engineering, Institute of Engineering, Suranaree, University of Technology, Nakhon Ratchasima 30000, Thailand
    2. Center for Petroleum, Petrochemical and Advanced materials, Chulalongkorn University, Bangkok 10330, Thailand
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  • Yupaporn Ruksakulpiwat

    Corresponding author
    1. School of Polymer Engineering, Institute of Engineering, Suranaree, University of Technology, Nakhon Ratchasima 30000, Thailand
    2. Center for Petroleum, Petrochemical and Advanced materials, Chulalongkorn University, Bangkok 10330, Thailand
    • School of Polymer Engineering, Institute of Engineering, Suranaree, University of Technology, Nakhon Ratchasima 30000, Thailand
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Abstract

Glycidyl methacrylate (GMA) was grafted onto natural rubber (NR) using emulsion polymerization method. The structures of copolymers were characterized by 1H nuclear magnetic resonance (1H-NMR), solid state 13C-NMR spectroscopy, and Fourier transform infrared spectrometer (FTIR). The %grafting obtained from the gravimetric method and the absorbance ratio were compared. Effects of reaction temperature, GMA content, and reaction time on %grafting, grafting efficiency, and %conversion of GMA monomer were determined. Effect of %grafting on mechanical properties of the graft copolymer was studied. Experimental result showed that the appropriate reaction time was 8 h at a reaction temperature of 30°C. Moreover, tensile strength and modulus of the graft copolymer increased with increasing %grafting. However, elongation at break of the graft copolymer decreased with increasing %grafting. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: 3152–3159, 2011

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