Styrenation of castor oil and linseed oil by macromer method

In this study a novel macromer technique has been described for the styrena tion of triglyceride oils. Macromers were prepared through the interesterif ication of castor oil with linseed oil followed by esterification with acry lic acid. In this preparation various castor oil/linseed oil ratios were ap plied to obtain a macromer which gave a copolymer with good film properties after copolymerization with styrene. Macromers were styrenated at 100 degr eesC using benzoyl peroxide as an initiator. The styrenation leads to impro ved film properties with the related interesterification product although c astor oil is a non-drying oil.