| 摘要 |
Processes for forming functionalized metal-containing particles. The processes employ a reactive precursor material comprising a metal atom, a leaving group attached to the metal atom, and a functional moiety attached to the metal atom. In one embodiment, functionalized metal-containing particles can be formed by grafting reactive precursors with functional groups to particles containing controlled surface hydroxyl concentrations; with the particles produced by a prescribed method. In another embodiment, a process for forming functionalized metal-containing particles comprises (a) providing a first solution comprising water, a surfactant, and a non-polar dispersant; (b) adding a reactive precursor to the first part to form a mixture, the reactive precursor comprising a metal atom comprising a leaving group attached to the metal atom, and an organic functional moiety attached to the metal atom; and (c) adding a catalyst to the mixture of (b) and reacting with heating under reflux to form functionalized metal-containing particles. |
| 主权项 |
1. A process for producing a metal-containing particle having an organofunctional grafted thereto, the method comprising:
forming a metal containing particle by: (a) forming a first phase comprising a mixture of water, a metal source, wherein the metal source comprises a metal selected from the group consisting of Si, Ti, Fe, Al, Zr, Nb, Y, B, Ce, V, Zn, Cu, Ni, Co, Ge, Mn, Mg, Cr, Fe, V, a rare earth metal, or a combination of two or more thereof, a first catalyst, a first surfactant, and a first alcohol; (b) adding the first phase to a second phase comprising water, a second alcohol, and a second surfactant to form a blend; (c) treating the blend with a phase enhancer; and (d) treating the blend from (c) with a second catalyst to form metal-containing particles comprising one or more surface hydroxyl groups; and grafting a reactive precursor to the particles, wherein the reactive precursor comprises a metal component selected from the group consisting of Si, Ti, Fe, Al, Zr, Nb, Y, B, Ce, V, Zn, Cu, Ni, Co, Ge, Mn, Mg, Cr, Fe, V, a rare earth metal, or a combination of two or more thereof. |
