Fumed silica modified by hexamethyldisilazane [HDMS] and polydimethylsiloxane [PDMS] was dispersed in a polystyrene/chloroform solution. To increase adhesion between deposited silica layers and a glass surface, the latter was pretreated with air plasma for 30s. The silica/polystyrene dispersion was deposited on the glass support using a spin coater. After deposition, the plates were dried in a desiccator for 24 h. Water advancing and receding contact angles were measured using the tilted plate method. The apparent surface free energy (gamma s) was evaluated using the contact angle hysteresis approach. The surface topography was determined using the optical profilometry method. Contact angles changed from 59.7 degrees +/- 4.4 (at surface coverage with trimethylsilyl groups Theta=0.14) to 155 degrees +/- 3.1 at Theta=1. The value of gamma s decreased from 51.3 degrees +/- 2.8 mJ/m(2) (for the sample at the lowest value of Theta) to 1.0 degrees +/- 0.4 mJ/m(2) for the most hydrophobic sample. Thus, some systems with a high degree of modification by HDMS showed superhydrophobicity, and the sliding angle amounted to about 16 +/- 2.1. (C) 2015 Elsevier B.V. All rights reserved.