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International Journal of Polymer Science - Volume 2015 2015, Article ID 243038, 6 pages -

Research ArticleSchool of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

Received 14 May 2015; Revised 2 July 2015; Accepted 6 July 2015

Academic Editor: Chuanbing Tang

Copyright © 2015 Nur Hanis Adila Azhar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Liquid natural rubber LNR is a depolymerized natural rubber NR which consists of shorter polymeric chains and lower molecular weight . Hydrogenated LNR HLNR was synthesized via the thermal decomposition of p-toluenesulfonyl hydrazide TSH or 2,4,6-trimethylbenzenesulfonyl hydrazide MSH. The LNR and HLNR structures were characterized by Fourier-transform infrared FTIR and nuclear magnetic resonance NMR spectroscopies. The percentage of hydrogenation was calculated from NMR spectrum. The optimum percentage of hydrogenation >90% was achieved by manipulating the reaction parameters such as sources of diimide, TSH concentration, solvent, and reaction time. The optimum condition was 3 : 1 weight ratio of TSH-LNR in o-xylene at 130°C in 4-hour reaction period.

Autor: Nur Hanis Adila Azhar, Naharullah Jamaluddin, Hamizah Md Rasid, Muhammad Jefri Mohd Yusof, and Siti Fairus M. Yusoff



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