SIFAT TERMAL DAN KELARUTAN DARI 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,)

Jurnal Kimia Mulawarman
Vol 14 No 2 (2017)

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.