Suat Hong Goh, Swee Yong Lee, C. L. Seah
1988
Citations
0
Influential Citations
4
Citations
Journal
Thermochimica Acta
Abstract
Abstract The effects of two hexadentate macrocyclic ligands, 1,4,7,10,13,16-hexathiacyclooctadecane and 1,4,10,13-tetrathia-7,16-diazacyclooctadecane, on metal ion catalyzed oxidation of natural rubber have been studied by DSC. Both ligands show antioxidant activity and are able to suppress oxidation catalyzed by copper, iron, cobalt and manganese ions. The two hexadentate ligands are better metal ion deactivators than a tetradentate ligand 1,4,7,11-tetrathiocyclotetradecane.