Abstract
The functionalization of cyclic natural rubber (CNR) as compatibilizer with oleic acid (AO) and divinylbenzene (DVB) in variation of dicumyl peroxide has been conducted. Those materials were processed in internal mixer at temperature 160°C with 0.25; 0,50 and 1.00 phr of dicumyl peroxide. The obtained material, CNR-g-AO, was characterized using FT-IR and DSC. The FT-IR spectra showed a signal that specific to the present of C=O around 1737,67 cm−1. An increase in the concentration of dicumyl peroxide increases the grafting degree of monomers onto CNR. The thermal analysis showed the functionalized CNR has different Tg (glass transition temperature) value compared to the neat CNR. These values indicated the successful grafting of oleic acid and divinylbenzene onto CNR.
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