Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology
Hydrogenated liquid natural rubber (HLNR) was synthesized from liquid natural rubber (LNR) by thermolysis of p-toluenesulfonyl hydrazide (TSH). The HLNR structure was characterized by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. Thermogravimetric analysis (T...
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doaj-0f399949b874416bb88469244c66297e2020-11-24T21:22:11ZengUniversitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782019-08-0119488289110.22146/ijc.3670622921Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface MethodologyMohamad Shahrul Fizree Idris0Nur Hanis Adila Azhar1Fazira Firdaus2Siti Efliza Ashari3Siti Fairus Mohd Yusoff4School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSchool of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSchool of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, Jalan UPM, 43400 Serdang, Selangor, MalaysiaSchool of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia Polymer Research Center (PORCE), Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaHydrogenated liquid natural rubber (HLNR) was synthesized from liquid natural rubber (LNR) by thermolysis of p-toluenesulfonyl hydrazide (TSH). The HLNR structure was characterized by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. Thermogravimetric analysis (TGA) showed that the HLNR had higher decomposition temperature compared to LNR. A response surface methodology (RSM) based on a central composite rotatable design (CCRD) with five-level-three-factors was used to optimize the main important reaction parameters, such as the TSH:LNR weight ratio (1–3), reaction temperature (110–150 °C), and reaction time (1–8 h). A quadratic model was developed using this multivariate statistical analysis. Optimum conditions for the non-catalytic hydrogenation of LNR using TSH were obtained; an LNR hydrogenation percentage of 83.47% at a TSH:LNR weight ratio of 1.41, a reaction temperature of 118.11 °C, and a reaction time of 3.84 h were predicted. The R2 value of 0.9949 indicates that the model provides data that are well matched with those from the experiment.https://jurnal.ugm.ac.id/ijc/article/view/36706response surface methodologycentral composite rotatable designoptimizationliquid natural rubberhydrogenation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohamad Shahrul Fizree Idris Nur Hanis Adila Azhar Fazira Firdaus Siti Efliza Ashari Siti Fairus Mohd Yusoff |
spellingShingle |
Mohamad Shahrul Fizree Idris Nur Hanis Adila Azhar Fazira Firdaus Siti Efliza Ashari Siti Fairus Mohd Yusoff Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology Indonesian Journal of Chemistry response surface methodology central composite rotatable design optimization liquid natural rubber hydrogenation |
author_facet |
Mohamad Shahrul Fizree Idris Nur Hanis Adila Azhar Fazira Firdaus Siti Efliza Ashari Siti Fairus Mohd Yusoff |
author_sort |
Mohamad Shahrul Fizree Idris |
title |
Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology |
title_short |
Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology |
title_full |
Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology |
title_fullStr |
Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology |
title_full_unstemmed |
Effect of Temperature, Time and Diimide/Rubber Ratio on the Hydrogenation of Liquid Natural Rubber by Response Surface Methodology |
title_sort |
effect of temperature, time and diimide/rubber ratio on the hydrogenation of liquid natural rubber by response surface methodology |
publisher |
Universitas Gadjah Mada |
series |
Indonesian Journal of Chemistry |
issn |
1411-9420 2460-1578 |
publishDate |
2019-08-01 |
description |
Hydrogenated liquid natural rubber (HLNR) was synthesized from liquid natural rubber (LNR) by thermolysis of p-toluenesulfonyl hydrazide (TSH). The HLNR structure was characterized by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. Thermogravimetric analysis (TGA) showed that the HLNR had higher decomposition temperature compared to LNR. A response surface methodology (RSM) based on a central composite rotatable design (CCRD) with five-level-three-factors was used to optimize the main important reaction parameters, such as the TSH:LNR weight ratio (1–3), reaction temperature (110–150 °C), and reaction time (1–8 h). A quadratic model was developed using this multivariate statistical analysis. Optimum conditions for the non-catalytic hydrogenation of LNR using TSH were obtained; an LNR hydrogenation percentage of 83.47% at a TSH:LNR weight ratio of 1.41, a reaction temperature of 118.11 °C, and a reaction time of 3.84 h were predicted. The R2 value of 0.9949 indicates that the model provides data that are well matched with those from the experiment. |
topic |
response surface methodology central composite rotatable design optimization liquid natural rubber hydrogenation |
url |
https://jurnal.ugm.ac.id/ijc/article/view/36706 |
work_keys_str_mv |
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