Oxidized Aromatic–Aliphatic Mixed Films at the Air–Aqueous Solution Interface

What is it about?

Mixed organic films composed of molecules with differing hydrophobic groups are relevant to environmental interfaces such as the surface of atmospheric aerosols due to the complex composition of atmospheric emissions. In this work, mixed films composed of oxidized aromatics (benzaldehyde, benzoic acid) and stearic acid are studied using Langmuir trough methods, infrared reflection–absorption spectroscopy (IRRAS), and MD simulations.

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Why is it important?

Molecules released through such anthropogenic processes are shown here to have complex interactions with organics released through biogenic emissions (like stearic acid) at the aqueous interface, resulting in diverse surface morphologies that may have an effect on the aerosol particle’s overall effect on atmospheric chemistry and climate.

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