Applied Surface Science, Vol.368, 97-103, 2016
Surfaces wettability and morphology modulation in a fluorene derivative self-assembly system
A new organogelator based on fluorene derivative (gelator 1) was designed and synthesized. Organogels could be obtained via the self-assembly of the derivative in acetone, toluene, ethyl acetate, hexane, DMSO and petroleum ether. The self-assembly process was thoroughly characterized using field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), UV-vis, FT-IR and the contact angle. Surfaces with different morphologies and wetting properties were formed via the self-assembly of gelator 1 in the six different solvents. Interestingly, a superhydrophobic surface with a contact angle of 150 degrees was obtained from organogel 1 in DMSO and exhibited the lotus-effect. The sliding angle necessary for a water droplet to move on the glass was only 15 degrees. Hydrogen bonding and van der Waals forces were attributed as the main driving forces for gel formation. (C) 2016 Elsevier B.V. All rights reserved.