Identification

Title

Oxidized aromatic-aliphatic mixed films at the air-aqueous solution interface

Abstract

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, showing modifications to the surface due to both the hydrophobic and hydrophilic identity of the aromatic molecules. Aromatics are a known component of crude oil, and once released into the atmosphere through an event such as an oil spill, they can be weathered to produce varying degrees of oxidized products like benzaldehyde or benzoic acid. 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. The result of these mixed films is discussed in the context of the modern atmosphere.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7kh0pwh

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2013-10-31T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact