| 초록 |
Monodispersed hollow and porous polymeric nanoparticles were prepared by several step reactions. Colloidal silica core was surface-modified with 3-methacryloxypropyltrimethoxy silane (MPS) by sol-gel method, and polymerized to form crosslinked polymeric shell with styrene (St), methyl vinyl ketone (MVK) and divinylbenezene (DVB) crosslinker in dimethylformamide (DMF). Nanoporous hollow nanoparticles were prepared by photodegradation of PMVK under UV irradiation, followed by selective removal of silica core by etching with hydrofluoric acid. Hollow/porous polymeric nanoparticles were characterized by DLS, TEM, SEM image, NMR and FT-IR spectroscopies. |
