120th General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Exhibition Hall 2+3
Time 10월 20일 (금요일) 13:00~14:30
Code POLY.P-31
Subject Fabrication of porous PS/PMMA microspheres through pickering emulsion
Authors Jeong rae Kim*, Daewon Sohn*
Department of Chemistry, Hanyang University, Korea
Abstract Porous polymer particles have attracted great interests due to numerous applications in many areas of advanced materials science. This research shows fabrication of porous SPS/PMMA(Sulfonated polystyrene/Poly methyl methacrylate) microspheres using γ-ray radiation and pickering emulsion. Porous SPS/PMMA microspheres has different pore sizes. The PS(Polystyrene) particles were located at interface between water and monomer. They can form pickering emulsions by shear force. Then, monomer will be absorbed into particles because of swelling properties of PS particles and water also diffuse into the particles by osmosis. These two factors induce the pores on the particles. They show different pore sizes and morphology depending on sulfonation time and swelling time. In this research, the porous microspheres are prepared via seeded polymerization with γ-ray radiation which didn’t require any chemicals as initiator and crosslinker.
E-mail jraekim12@naver.com