Studies on synthetic polymer plates with high surface energy. I. Diallyl phthalate‐unsaturated carboxylic acid system

Abstract

AbstractA new preparation technique of the polymer plate with high water wettability and sufficient mar resistance was proposed. The gel plate resulting from the prepolymerization of diallyl compound (M1), diallyl phthalate (DAP), in a casting cell was immersed in an aqueous solution of unsaturated carboxylic acid (M2), acrylic acid (AA), and methacrylic acid (MAA), at a specific temperature for a specific time. M2 was copolymerized with the remaining M1 in the region near the surface of the gel plate, and polymer plates with the following characteristics were obtained: for DAP–AA system, θi (contact angle of the alkali‐treated plate) = 10.5° and mar resistance (for the alkali‐treated plate at a dry state) = 70 g; for DAP–MAA system, θi = 8.3°, and mar resistance = 65 g.