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Styrenation
of Oils Based on Secondary Esters of Castor Oil O.
S. Kabasakal, F.S. Güner, A.T. Erciyes, and Y. Yagci* Istanbul
Technical University, Chemical Engineering Department 80626 Maslak,
Istanbul, TURKEY *
Istanbul Technical University, Department of Chemistry 80626 Maslak,
Istanbul, TURKEY The synthesis of styrenated
oils based on secondary esters of castor oil is described. The steps of
the process are as follows: (1) esterification of castor oil with fatty
acids of drying and semidrying oils; (2) splitting of castor oil esters;
and (3) conversion of the splitting mixture to either triglyceride or
partial glyceride. While the triglyceride samples were styrenated by a
conventional process, the partial glycerides’ thermally labile azo
groups were initially inserted into the oil molecule, and then this
intermediate was reacted with styrene. The obtained styrenated oils showed
good film properties.
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