| 摘要 |
The invention concerns a process for the preparation of Janus particles, comprising the following steps: a) treating a core particle with an aminating agent to introduce amino groups on the surface of the core particle, b) immobilizing an alkyl halide on the surface of the core particle, c) providing a solution A comprising a solvent S1 and a monomer M1 which is soluble in said solvent S1, and a solution B comprising a solvent S2 and a monomer M2 which is soluble in said solvent S2, wherein S1 and S2 are not miscible with each other to form a homogeneous solution, d) preparing an emulsion of solution A and solution B with the treated core particle obtained from step b), e) initiating the polymerization of monomer M1 at the surface of the core particle facing solvent S1 and of monomer M2 at the surface of the core particle facing solvent S2, and f) separation of the Janus particles, Janus particles obtainable by the process and their use. |
