Synthesis of robust raspberry-like particles using polymer brushes.

Synthesis of chemically and mechanically robust raspberry-like particles as well as wetting properties of coatings based on them is reported. The raspberry-like particles were prepared by immobilization of silica nanoparticles on the surface of silica microparticles coated by poly(glycidyl methacrylate) brush layer. The raspberry-like particles retain their structure after ultrasonication and exposure to organic solvents that allows their use as substrates for immobilization on polymers. Fabrication ultrahydrophobic surfaces using raspberry-like particles with immobilized poly(pentafluorostyrene) was also demonstrated.