Rowan, SM, Newton, MI ORCID: https://orcid.org/0000-0003-4231-1002, Driewer, FW and McHale, G, 2000. Evaporation of microdroplets of azeotropic liquids. Journal of Physical Chemistry B, 104 (34), pp. 8217-8220. ISSN 1089-5647
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Abstract
This work reports data showing the evolution of contact angle with time for mixtures of water and 1-propanol at room temperature on poly(methyl methacrylate) (PMMA). The composition range investigated spans the azeotropic composition, thus encompassing systems containing excess water and excess 1-propanol. A discontinuity in the contact angle behavior is observed and it is suggested that this enables the identification of the azeotropic composition as 0.39 mole fraction of 1-propanol. This suggestion is supported by boiling point measurements made at around 20 mmHg. The discontinuity is associated with the presence of an instability, which causes a distortion around the droplet perimeter. It is suggested that the distortion is caused by competing effects of local surface tension maxima and minima.
Item Type: | Journal article |
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Publication Title: | Journal of Physical Chemistry B |
Creators: | Rowan, S.M., Newton, M.I., Driewer, F.W. and McHale, G. |
Publisher: | ACS Publications |
Place of Publication: | Washington, DC |
Date: | 2000 |
Volume: | 104 |
Number: | 34 |
ISSN: | 1089-5647 |
Identifiers: | Number Type 10.1021/jp000938e DOI |
Rights: | Reprinted with permsision from [citation above]. Copyright © 2000 American Chemical Society. |
Divisions: | Schools > School of Science and Technology |
Record created by: | EPrints Services |
Date Added: | 09 Oct 2015 10:33 |
Last Modified: | 09 Jun 2017 13:32 |
URI: | https://irep.ntu.ac.uk/id/eprint/14616 |
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