@article {2048,
	title = {Reactive uptake of N2O5 on aqueous H2SO4 solutions coated with 1-component and 2-component monolayers},
	journal = {Journal of Physical Chemistry A},
	volume = {112},
	number = {20},
	year = {2008},
	note = {ISI Document Delivery No.: 301OHTimes Cited: 16Cited Reference Count: 90Cosman, L. M. Bertram, A. K.},
	month = {May},
	pages = {4625-4635},
	type = {Article},
	abstract = {Reactive uptake of N2O5 on aqueous sulfuric acid solutions was studied in the presence of 1-component (octadecanol) and 2-component (octadecanol + phytanic acid) monolayers. In the 1-component monolayer experiments, the reactive uptake coefficient depended strongly on the molecular surface area of the surfactant. Also, the 1-component monolayer showed significant resistance to mass transfer even when the fractional surface coverage of the surfactant was less than 1. For example, a monolayer of I-octadecanol with a fractional surface coverage of 0.75 decreased the reactive uptake coefficient by a factor of 10. This is consistent with previous studies. In the 2-component monolayer experiments, the reactive uptake coefficient depended strongly on the composition of the monolayer. When the monolayer contained only straight-chain molecules (1-octadecanol), the reactive uptake coefficient decreased by a factor of 42 due to the presence of the monolayer. However, when the monolayer contained 0.20 mole fraction of a branched surfactant (phytanic acid) the reactive uptake coefficient only decreased by a factor of 2. Hence, a small amount of branched surfactant drastically changes the overall resistance to reactive uptake. Also, our results show that the overall resistance to reactive uptake of 2-component monolayers can be predicted reasonably accurately by a model that assumes the resistances to mass transfer can be combined in parallel.},
	keywords = {AIR-WATER-INTERFACE, ATMOSPHERIC AEROSOL, EVAPORATION RESISTANCES, FILMS, HETEROGENEOUS HYDROLYSIS, MIXED MONOLAYERS, ORGANIC, REACTION PROBABILITIES, SEA-SALT, SULFURIC-ACID PARTICLES, TRANSPORT PROPERTIES},
	isbn = {1089-5639},
	url = {<Go to ISI>://000255905000015},
	author = {Cosman, L. M. and Bertram, A. K.}
}
