Surface Morphology of Thin Polyamide Films Created by Electrospray Compared with a Control (IMAGE)

University of Connecticut

Surface Morphology of Thin Polyamide Films Created by Electrospray Compared with a Control

Caption

Microscopic images showing the difference in surface morphology between thin polyamide films created using electrospray at UConn and a control. (Left to right) The first image shows the surface of a commercial polysulfone substrate at 100,000x magnification. The second and third images show exceptionally thin films created at UConn using different monomer concentrations on the polysulfone substrate. The fourth and last image shows the surface morphology of a widely-used commercial thin film. Smoother membranes with less ridges and valleys are preferred for reverse osmosis desalination as they are less prone to fouling.

Credit

Images courtesy of Maqsud R. Chowdhury/McCutcheon Lab.

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