| 초록 |
CaCO3 absorbed sodium dodecyl benzene sulfonate (SDBS) surfactant was prepared. Core-shell polymers of inorganic/organic pair, which have both core and shell component, were synthesized by sequential emulsion polymerization using methyl methacrylate (MMA), ethyl acrylate (EA), butyl acrylate (BA), styrene (St) as a shell monomer and ammonium persulfate as an initiator. We found that when CaCO3 core prepared by adding 2.0 wt% SDBS, CaCO3 core/PMMA, CaCo3/PEA, CaCO3/PBA, CaCO3/PSt shell polymeriation was carried out on the surface of CaCO3 particle without forming the new PMMA particle during MMA shell polymerization in the inorganic/organic core-shell polymer preparation. The structure of core-shell polymer were investigated by measuring the degree of decomposition of CaCO3 using HCl solution, thermal decomposition of polymer composite using thermogravimetric analyzer, glass transition temperature by differential scanning calorimeter, and morphology by scanning electron microscope. |
