| 초록 |
Atom transfer radical polymerization (ATRP) has opened a new route to synthesize functional and architectural polymers with well-defined structures. In this work, poly(ethylene oxide)-b-poly(2-hydroxyethyl methacrylate) (PEO-b-PHEMA) was synthesized by successive ATRP of 2-hydroxyethyl methacrylate（HEMA） monomer using PEO-Br macroinitiator as an initiator, CuBr and 2,2’-bipyridyl (bpy) as a catalyst and a ligand, respectively. Poly(ethylene oxide) (PEO) and poly(2-hydroxyethyl methacrylate) (PHEMA) are two of the most frequently investigated classes of hydrophilic polymers. Then, amphiphilic diblock copolymers were prepared by the reaction of PEO-b-PHEMA, 4-phenylazobenzoic acid and 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, 4-(Dimethylamino)pyridine. In this study, we prepared spherical micellar structure using the synthesized amphiphilic diblock copolymers. The formation of micellar structures was confirmed by a fluorescence technique by using pyrene as a probe. |
