Articles | Volume 17, issue 13
https://doi.org/10.5194/acp-17-8509-2017
https://doi.org/10.5194/acp-17-8509-2017
Research article
 | 
13 Jul 2017
Research article |  | 13 Jul 2017

The effect of hydroxyl functional groups and molar mass on the viscosity of non-crystalline organic and organic–water particles

James W. Grayson, Erin Evoy, Mijung Song, Yangxi Chu, Adrian Maclean, Allena Nguyen, Mary Alice Upshur, Marzieh Ebrahimi, Chak K. Chan, Franz M. Geiger, Regan J. Thomson, and Allan K. Bertram

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Short summary
The viscosities of four polyols and three saccharides mixed with water were determined. The results from the polyol studies suggest viscosity increases by 1–2 orders of magnitude with the addition of an OH functional group to a carbon backbone. The results from the saccharide studies suggest that the viscosity of highly oxidized compounds is strongly dependent on molar mass and oligomerization of highly oxidized compounds in atmospheric SOM could lead to large increases in viscosity.
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