Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

Figure 4

TGA thermograms of sulfonated PS-DVB microbeads (PS-DVB-SO₃H) before and after magnetization: (MAG 1) magnetization after washing the iron salt adsorbed beads; (MAG 2) magnetization without washing (in situ magnetization); iron oxide content: 18% (MAG 1) and 26% (MAG 2).