| 초록 |
Poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-b-PPO-b-PEO) triblock copolymers, known as Pluronics or Poloxamer, were well-established which were biocompatible and amphiphilic. Based on the ring-opening multibranching polymerization principle, glycidol was polymerized onto linear aliphatic chain macroinitiators. Pluronics has been studied extensively because of its larger pore sizes and better chemical and physical stabilities. Mesoporous materials were synthesized by self-assembly of silica-surfactant such as Pluronics in which inorganic species simultaneously condense, giving rise to mesoscopically ordered composites formation. Amphiphilic linear-hyperbranched block copolymers were also used as a template for ordered mesoporous silicas. Infrared spectroscopy, N2 adsorption isotherms, transmission electron microscope, X-ray diffraction and nuclear magnetic resonance spectroscopic techniques were used to characterize each product. |
