S. TuampoemsabJ. SakdapipanichMahidol University2018-08-242018-08-242007-12-01KGK Kautschuk Gummi Kunststoffe. Vol.60, No.12 (2007), 678-684094832762-s2.0-37249069370https://repository.li.mahidol.ac.th/handle/123456789/24436The effect of naturally occurring lipids and proteins on thermal oxidative degradation was investigated for deproteinized natural rubber (DPNR) and lipids-removed natural rubber (LRNR) obtained from fresh latex of Hevea brasiliensis clone RRIM 600. Chemical and physical changes of heat-aged samples were monitored by Wallace Plasticity, gel permeation chromatography (GPC) and tensile test. The DPNR added with the extracted lipids was the most sensitive for oxidative degradation than that of the neat DPNR but the proteins originally comprised in the NR exhibited as one of the natural antioxidants to hinder the activity of alkylperoxyl radicals under heat accelerated condition.Mahidol UniversityEngineeringMaterials ScienceArticleSCOPUS