| 초록 |
Magnetic nanoparticles was prepared by FeCl3 and FeCl2 (molar ratio 1:2), and modified by (3-amnopropyl)triethoxysilane and acrylic acid, and characterized by XRD, XPS, TEM and FT-IR. And magnetic moment of pure and modified magnetic nanoparticles was measured. The hydrogel was prepared by acryilc acid and modified magnetites. The modified magnetites was adjusted to 0, 1, 2, 3 wt% of total monomer. Mechanical properties (tensile strength and elongation) of PAA hydrogel with magnetites was measured by texture analyzer in swollen state. Swelling ratio was measured by various pH. |
