PHENYL ACRYLATES AND DIVINYL BENZENE CROSS-LINKED COPOLYMERS AS BASIC NOVEL SUPPORTS - SYNTHESIS AND CHARACTERIZATION

Suspension copolymerization of glycidyl methacrylate (GMA), phenyl methacrylate (PhMA), 2,4,6-tribromophenyl acrylate (TBPA), and 4-acetylphenyl acrylate (APA) with divinyl benzene (DVB) was carried out at 80 +/- 1-degrees-C in aqueous medium, as basic supports for possible applications in polymer-supported chemistry. The resulting copolymer beads were characterized with various techniques. The identification of monomers in the copolymer was attempted using FTIR and C-13-CP/MAS-NMR spectroscopic techniques. The optical and scanning electron microscopic methods were used to study the shape, size, and surface morphology of the beaded copolymers. The particle-size distribution was measured, and the average particle size of the particulate copolymers were carried out using a Malvern particle-size analyzer. The decomposition temperatures and energy of activation involved in the thermal degradation were studied with thermogravimetry. The solvent imbibition of the polymer supports in various solvents was carried out with a centrifuge method.