Athipongarporn N., Saiwan C., Tontiwachwuthikul P., 2013, Effect of Amines on High Internal Phase Emulsion Adsorbents for Carbon Dioxide Adsorption, Chemical Engineering Transactions, 35, 415-420.
High internal phase emulsion polymers (PolyHIPE) with amine, i.e. hexylamine, were prepared. The oil-in-water emulsion system was obtained by mixing divinylbenzene, vinylbenzylchloride and surfactants, SpanR 80 (oil soluble surfactant) and Triton X-100 (water soluble surfactant). The optimum condition of the emulsion system was obtained by varying the ratio of the surfactants. The ratio of SpanR80 to Triton X- 100 of 1.33 was optimum for polyHIPE, while an addition of hexylamine, the optimum was 1.50. A Fourier transform infrared spectroscope was used to confirm the presence of amine in polyHIPE by using the peak ratio change of C– vinyl at 900 to 920 cm-1 to C–chloride at 729 cm-1. Scanning electron microscopyshowed that the morphology of polyHIPE was spherical. Voids and fractures on the surface morphology were formed by agglomeration of small spheres and the surface area was a consequence of the effect of the oil soluble surfactant (SpanR80) that was dissolved into oil droplets and formed water-in-oil emulsion system.
