Functionalization of cyclic natural rubber grafted maleic anhydride (cnr-g-ma) with variation of ma concentration, inisiator and reaction time
Abstract
Cyclic natural rubber have low compatibilities when mixed with other polymer. The compatibility of a cyclic natural rubber (CNR) could be increased through grafted functional monomer to the polymer backbone. This research aims to know about influence of maleic anhydrate concentration (3-15 phr) as monomer, concentration of benzoyl peroxide (0.05-0.2 molar ratio) as initiator and times (15-90 minute) towards grafting degree of maleic anhydride. The research conducted with reflux in oil bath, at constant temperature 110ºC. The grafting degree determined with titration method and FTIR analysis used to show the existence of grafted maleic anhydrate onto cyclic natural rubber. Result of FTIR analysis showed that grafted anhydrate to cyclic natural rubber assigned with the presence of carbonyl absorptions (C=O stretching). Result titration showed that concentration of maleic anhydrate and benzoyl peroxide enhanced as well as grafting degree. While for variation of time, optimum grafting degree achieved at 60 minute.
Keywords: Grafting; inisiator; natural rubber; polymer
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Bhattacharya, A., & Misra, B. N. (2004). Grafting: a versatile means to modify polymers: techniques, factors and applications. Progress in Polymer Science, 29(8), 767-814, doi: 10.1016/j.progpolymsci.2004.05.002
Eddyanto. (2007). Functionalitation of polymers: reactive processing, structure and peformance characteristics, Thesis, Aston University.
Ferrero, F. (2005). Solvent effect in grafting of liquid polybutadienes with maleic anhydride. Progress in organic coatings, 53(1), 50-55, doi: 10.1016/j.porgcoat.2004.12.009
Ginting, S. N., Simanullang, E. K., Simanullang, L. P., Nainggolan, B., & Silaban, S. (2018). The optimization of acid hydrolysis on bioethanol production from durian peel waste (Durio zibethinus murr). Jurnal Pendidikan Kimia, 10, 382-386, doi: 10.24114/jpkim.v10i2.10917
Golub, M. A., & Heller, J. (1963). The reaction of polyisoprene with titanium tetrachloride. Canadian Journal of Chemistry, 41(4), 937-953, doi: 10.1139/v63-133
Krump, H., Alexy, P., & Luyt, A. S. (2005). Preparation of a maleated Fischer–Tropsch paraffin wax and FTIR analysis of grafted maleic anhydride. Polymer Testing, 24(2), 129-135, doi: 10.1016/j.polymertesting.2004.09.011
Mojgan, M. (2000). The cyclization of natural rubber. Iran J. Chem.& Chem. Eng, 19(2), 91-96.
Nakason, C., Saiwaree, S., Tatun, S., & Kaesaman, A. (2006). Rheological, thermal and morphological properties of maleated natural rubber and its reactive blending with poly (methyl methacrylate). Polymer testing, 25(5), 656-667, doi: 10.1016/j.polymertesting.2006.03.011
Nakason, C., Kaesaman, A., & Supasanthitikul, P. (2004). The grafting of maleic anhydride onto natural rubber. Polymer Testing, 23(1), 35-41, doi: 10.1016/s0142-9418(03)00059-x
Nakason, C., Kaesaman, A., Samoh, Z., Homsin, S., & Kiatkamjornwong, S. (2002). Rheological properties of maleated natural rubber and natural rubber blends. Polymer Testing, 21(4), 449-455, doi: 10.1016/s0142-9418(01)00109-x
Riyajan, S., & Sakdapipanich, J. T. (2006). Cationic cyclization of deproteinized natural rubber latex using sulfuric acid. KGK-Kautschuk, Gummi, Kunststoffe, 59(3), 104-109.
Riyajan, S., Tuampoemsab, S., & Sakdapipanich, J. T. (2008). Dynamic mechanical and physical properties of cyclized natural rubber blends. KGK-Kaust Gummi Kunststoffe, 61, 665-670.
Saunders, K. J. (1988). Organic polymer chemistry. Second Edition, Blackie Academic & Professional, Glasgow.
Sitanggang, B. C., Wirjosentono, B., & Ginting, M. (2016). Preparationof Fe-chitosan schiff base complex. Jurnal Pendidikan Kimia, 8(3), 203-206.
Yohan, N. R., Hendrajaya, R., & Siradj, E. S. (2006). Sintesis kopolimer tercangkok asam akrilat pada film LLDPE. Jurnal Kimia Indonesia, 1(1), 32-38.
George, V., Britto, I. J., & Sebastian, M. S. (2003). Studies on radiation grafting of methyl methacrylate onto natural rubber for improving modulus of latex film. Radiation physics and chemistry, 66(5), 367-372, doi: 10.1016/s0969-806x(02)00390-0
DOI: https://doi.org/10.24114/jpkim.v11i3.15736
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