TY  - BOOK
AU  - Ibrahim S
AU  - Mustafa A
AU  - Tan K S
TI  - Chemical degradation of natural rubber latex in acidic medium catalysed by CoCl2 and (NH4)2 Fe(SO4)2
PY  - 2015///
PB  - Journal of Rubber Research
KW  - Cobalt chloride
KW  - Ferrous ammonium sulphate
KW  - Liquid natural rubber(LNR)
KW  - Redox reaction
N1  - Source Year: 2015
N2  - Liquid natural rubber (LNR) is a derivative of natural rubber (NR) which has a molecular weight of less than 50,000 g/mol. In this study, LNR was prepared via chemical degradation reaction using hydrogen peroxide and sodium nitrite as reagents in latex solution. Compared to the reaction without catalyst, molecular weight of LNR obtained was found to decrease approximately three and two times in the presence of cobalt chloride (CoCl2) and ferrous ammonium sulphate ((NH4)2Fe(SO4)2), respectively. Using the method described, the degradation reaction generates functional groups such as hydroxyl and carbonyl in the LNR chains. In the presence of these catalyst, the hydroxyl groups are decreased and contrarily carbonyl groups in the LNR chains are increased
ER  -