Fabrication and Characterization of an Organic‐Inorganic Gradient Surface made by Polymethylsilsesquioxane (PMSQ)

Summary: A simple method for the fabrication of a chemical composition gradient from organic to inorganic by the pyrolysis of a polymethylsilsesquioxane (PMSQ) thin film in a gradient temperature field is reported. The resultant chemical gradient surface demonstrates gradual changes in wettability, and slight microstructural changes are observed along the substrate. FT‐IR spectra of gradient PMSQ surface along the length from the unheated side to the heated side. magnified image FT‐IR spectra of gradient PMSQ surface along the length from the unheated side to the heated side.