Then, it was immersed in a solution of the silane coupling agent KH-540 (γ-aminopropyltrimethoxysilane) in ethanol (1 g in 100 mL of ethanol) under stirring at 80°C for 10 h and washed with ethanol in ultrasonic bath.
Following the removal from the plasma chamber, the slides were immersed in a 1/100 v/v solution of the silane coupling agent and n-hexane (Aldrich) overnight in a covered container at room temperature (∼21 °C).
The acyclic alkene (1 mmol) in THF (2 mL) was added dropwise, over a period of one hour, to a solution of trimethyl trichloromethyl)silane (TMSCCl3; 0.21 g, 1.1 mmol) and tetrabutylammonium triphenyldifluorosilicate (TBAT; 0.027 g, 5 mol %) in THF (2 mL) under argon at room temperature, and the mixture was stirred overnight.
Dry toluene was degassed with nitrogen for approximately 20 min. The substrates were then immersed in a 1 mM solution of OEG-silane and left for 2 h.
The PSiO2 films are first immersed in a solution of 3-glycidoxypropyl trimethoxy)silane (GPTS) dissolved in toluene (90 mM) for 2 h.
The first step involved incubation of the tips in a 2% solution of 3-mercaptopropyltrimethoxy silane (MTS; Sigma) in dried toluene (4-Å molecular sieve) for 2 h, followed by washing with toluene and then methanol.
In recent years consolidation has also been carried out by using a variety of silane solutions as well as acrylic copolymers.
The membrane samples were immersed in the silane solution of different concentrations (2, 5, and 10?vol.% in ethanol) at room temperature (25 C) and then dried at 70 C for 24?h.
The grafted membranes (alumina (A), alumina-titania composite (AT), titania (T)) obtained by immersion in a silane solution of different concentrations (2, 5, and 10?vol.%) in an ethanol solution at room temperature 25 C were tested by measuring the contact angle developed on the surface.
To render the channels fluorophilic they were immediately flushed with a 0.5% v/v solution of trichloro(1H,1H,2H,2H-perfluorooctyl)silane in Fluorinert FC-40 (3M) and subsequently cured at 120 °C overnight.
