A denture base polymeric composition comprising an unsaturated polyester derived from reaction product of alkaline alcoholysis of palm kernel oil and glycerol, followed by condensation reactions with dicarboxylic acid and/or acid anhydride; and subsequently copolymerization of the polyester with alkyl methacrylate monomer selected from the group consisting of methacrylic derivatives having C1 to C5 alkyl group by using a free radical initiator.