F.H. Rajabi - Department of Chemistry, Faculty of Science; Imam Khomeini International University, P.O.Box ۲۸۸, Qazvin, Iran.
M.M Alavi Nikje
T Taslimipour

The epoxidation of Styrene – butadiene rubber (SBR) is carried out in chloroform /acetone/water solution using in situ – generated dimethyldioxirane as oxidant in presence of phase transfer catalyst (PTC). The process of reaction is monitored by 1HNMR spectroscopy. It was demonstrated that the epoxidation of SBR is second order and corresponds to a first order to the content of double bonds. The rate constant as well as the activation energy was established.

Kinetic; styrene – butadiene rubber (SBR); Dimethyldioxirane; Epoxidation; Phase transfer catalyst (PTC)