Grafting of Maleic Anhydride onto Cyclized Natural Rubber by Reactive Processing: the Effect of Maleic Anhydride Concentrations
Abstract
Grafting of Maleic Anhydride onto Cyclized Natural Rubber has been performed in the Internal Mixer at 150oC and 80 rpm. The grafted product were analysed by Fourier Transformed Infra Red to determine the presence of Maleic Anhydride onto Cyclized Natural Rubber and Differential Scanning Chalorimetry and Thermogravimetric Analysis to investigated their thermal properties. Fourier Transformed Infra Red spectra confirmed that the grafted product accured by appearance of characteristic band at 1720 cm-1. The higher concentration of Maleic Anhydride reacted the higher of grafting degree of Maleic Anhydride by means of carbonyl index. Futhermore, the glass transition temperature values increase with increasing the grafting degree of Maleic Anhydride and Thermogravimetric Analysis thermogram showed the thermal properties of grafted product did not change significantly compared with the Cyclized Natural Rubber blank.
Keywords: grafting, cyclized natural rubber, reactive processing, maleic anhydride
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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