| 초록 |
Polyurethane (PU) microcapsule with azide group can functionalized on the surface through azido-alkyne click reaction. The PU prepolymer was synthesized using poly(GAP-co-THF)diol and methylene diisocyanate (MDI). And azido-PU microcapsules were prepared by emulsion-interfacial polymerization in water/oil phase. The size and morphology of microcapsule can be controlled by the core to shell ratio and the amount of surfactants. To characterize the microcapsules, scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) were employed. Since the shell of microcapsules has azido group, it can click reactions with various alkyne groups. We have confirmed the click reaction and it is possible to apply to diverse fields. |
