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Wednesday, April 17 • 9:00am - 10:30am
The Adsorption of Sea Water Cations to Materials Containing Phenyl Rings

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Xerogels are inexpensive, easy-to-produce films whose surfaces are easily tailored. As such, these coatings have been evaluated as a method for preventing marine fouling on man-made surfaces. Various surface properties can be obtained by changing the organic functional groups present at the coating surface. Coatings made from two commonly studied functional groups, a phenyl ring (PH) and a trifluorocarbon (TFP), have been shown to generate very similar surface properties; however, recent studies comparing organismal settlement on these two chemistries indicated biofouling organisms differentiated between the two surfaces. Current methods for characterizing the coating surfaces failed to discover significant differences in surface properties. Cations can interact with pi electrons via cation-pi interactions; thus, it is hypothesized that cations in seawater adsorb to the PH coating via cation-pi interactions producing a significantly different surface than TFP coatings, which could influence organismal settlement. This current study investigated the absorbances of cations in seawater to the PH coating in preference to the TFP coating.

Wednesday April 17, 2019 9:00am - 10:30am
Lumsden Gym
  • Moderator Caitlyn Montross