Synthesis and characterization of styrenated rubber seed oil alkyd

Rubber seed oil alkyd was post-polymerized with styrene monomer at ratios of 1: 2, 1: 4, 1: 6, 1: 8, and 1: 10 at 100 degrees C for 3 h (samples i - v) and 6 h (samples A -B), to obtain two sets of styrenated alkyds. The styrenated alkyds and the rubber seed oil alkyd were all characterized and evaluated by standard methods, for their physico-chemical properties, drying schedule and chemical resistance. All the resins showed good properties. However, the styrenated alkyds gave a faster drying time, even in the absence of a drier. Unlike the unstyrenated alkyd which is only resistance to water, brine and acidic media, the styrenated alkyds were also resistant to alkali. The styrenated alkyds prepared over a period of 6 h gave shorter drying time than those prepared in 3 h, irrespective of the alkyd - styrene ratios.