The Malaysian Journal of Analytical Sciences Vol 11 No 1 (2007): 42 - 47

 

 

THE INFLUENCE OF TEMPERATURE AND REACTION TIME IN THE DEGRADATION OF NATURAL RUBBER LATEX

 

Siti Zaleha Isa, Rosiyah Yahya*, Aziz Hassan and M. Tahir

 

Dept. of Chemistry, Faculty of Science, Universiti Malaya,

 50603 Kuala Lumpur, Malaysia

 

*Corresponding author: rosiyah@um.edu.my

 

Abstract

Liquid natural rubber (LNR /LENR) should be considered as a new material instead of a new type of rubber though they have the same configuration as the rubber used. In this work, thermal degradation of natural rubber latex was carried out to obtain LNR/LENR by varying the reaction time at different temperatures. The degraded  polymers were characterized structurally using FTIR and NMR spectroscopies and the average molecular  weights were determined by membrane- osmometry and viscometry .

 

Keywords: natural rubber latex, chain-scission, degradation

 

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