초록 |
A new polymeric emulsifier, polyglycerol-block-poly(ε-caprolactone), to prepare and stabilize oil-in-water nanoemulsions with a semi-solid interphase is introduced in this work. Nanoemulsions are prepared using representative silicone and ester oils, which are widely used for commercial consumer products. The block copolymer is reorganized at the interface to form robust semi-solid polymeric barrier, and the barrier exhibits excellent stability against mechanical stresses such as freeze/thaw cycles. This work suggests that polyglycerol-based block copolymers can be a new promising polymeric emulsifier for stabilization of nanoemulsion of various oils. This study was supported by a grant of the Korea Healthcare Technology R&D Project, Ministry of Health & Welfare, Republic of Korea (A103017) |