THERMAL AND SOLUBILITY PROPERTIES OF CYCLIC LIQUID NATURAL RUBBER

  • Leni Widiarti Universitas Sumatera Utara
  • Basuki Wirjosentono Departemen Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sumatera Utara
  • Eddyanto Eddyanto Department of Chemistry, Faculty of Mathematics and Natural Sciences, University State of Medan,

Abstract

Cyclic Liquid Natural Rubber (CLNR) is a cyclical natural rubber which has decreased molecular weight. Synthesis of Cyclic Liquid Natural Rubber (CLNR) can be done in a way that degradation after cyclization. Degradation after cyclization using Cyclic raw material Natural rubber (CNR), the degradation is done by using phenylhydrazine reagents with oxygen gas atmosphere with a flow rate of 2 LMenit-1 for 24 hours. CNR and CLNR thermal analysis by DSC, Tg results obtained amounted to 102.82 ° C and 103.67 ° C, Tc amounted to 362.45 ° C and 330.29 ° C and Tm mounted to 509.24 ° C and 440 , 00 oC. Of CNR and CLNR solubility test has a polarity index of 2.4 to 4.4 and from 2.4 to 4.4.

References

[1] Muthawali, D.I. (2013). Optimasi Penggunaan Ammonium Hidroksida Terhadap Mutu Produk Resin Di Pabrik Resiprene. Universitas Sumatera Utara
[2] Fainleib A., Pires R. V., Lucas E. F., Soares B. G., 2013. Degradation of Non-Vulcanized Natural Rubber-Renewable Resources for Fine Chemicals Used in Polymer Synthesis. Polimeros Journal. 1 : 12
[3] Pautrat, R. (1980). Liquid rubbers from natural polyisoprene: preparation and properties [Caoutchoucs liquides de polyisoprene naturel preparation et propriétés]. Revue generale du caoutchouc et des plastiques. 57 : 91
[4] Brosse, (2000). Chemical Modifications of Polydiene Elastomers: A Survey and Some Recent Results. France : Faculte´ des Sciences, Universite´ du Maine.
[5] Gazeley K. F., Mente P. G., 1996. Metoda Penurunan Berat Molekul Karet di dalam Lateks. Paten Indonesia, ID 0 000 771.
[6] Klaichim, W., Klinpituksa, P., Waehamad, W., 2009. A Novel Polymeric Herbicide Based on Phenoxyaceic Acid Derivatives, Journal of Science and Technology. 31(1) : 57
[7] Ghost, P. 2006. Thermal Transitions in Polymers. Polymer Science
[8] Steven, M.P. 2001. Kimia Polimer. Edisi Pertama. Pradnya Pramita. Yogyakarta
[9] Yazid, E. 2005. Kimia Fisika untuk Paramedis. Yogyakarta : Penerbit ANDI
Published
2017-05-30
How to Cite
WIDIARTI, Leni; WIRJOSENTONO, Basuki; EDDYANTO, Eddyanto. THERMAL AND SOLUBILITY PROPERTIES OF CYCLIC LIQUID NATURAL RUBBER. JURNAL KIMIA MULAWARMAN, [S.l.], v. 14, n. 2, p. 139-143, may 2017. ISSN 2476-9258. Available at: <http://jurnal.kimia.fmipa.unmul.ac.id/index.php/JKM/article/view/474>. Date accessed: 24 sep. 2017.
Section
Artikel