Open Access
Switchable Surfactants
Publication type: Journal Article
Publication date: 2006-08-18
scimago Q1
wos Q1
SJR: 10.416
CiteScore: 48.4
Impact factor: 45.8
ISSN: 00368075, 10959203
PubMed ID:
16917059
Multidisciplinary
Abstract
Many industrial applications that rely on emulsions would benefit from an efficient, rapid method of breaking these emulsions at a specific desired stage. We report that long-chain alkyl amidine compounds can be reversibly transformed into charged surfactants by exposure to an atmosphere of carbon dioxide, thereby stabilizing water/alkane emulsions or, for the purpose of microsuspension polymerization, styrene-in-water emulsions. Bubbling nitrogen, argon, or air through the amidinium bicarbonate solutions at 65°C reverses the reaction, releasing carbon dioxide and breaking the emulsion. We also find that the neutral amidines function as switchable demulsifiers of an aqueous crude oil emulsion, enhancing their practical potential.
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Metrics
782
Total citations:
782
Citations from 2024:
67
(8.57%)
Cite this
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MLA
Cite this
RIS
Copy
TY - JOUR
DO - 10.1126/science.1128142
UR - https://doi.org/10.1126/science.1128142
TI - Switchable Surfactants
T2 - Science
AU - Liu, Yingxin
AU - Jessop, Philip G.
AU - Cunningham, Michael
AU - Eckert, Charles A.
AU - Liotta, Charles L.
PY - 2006
DA - 2006/08/18
PB - American Association for the Advancement of Science (AAAS)
SP - 958-960
IS - 5789
VL - 313
PMID - 16917059
SN - 0036-8075
SN - 1095-9203
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2006_Liu,
author = {Yingxin Liu and Philip G. Jessop and Michael Cunningham and Charles A. Eckert and Charles L. Liotta},
title = {Switchable Surfactants},
journal = {Science},
year = {2006},
volume = {313},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {aug},
url = {https://doi.org/10.1126/science.1128142},
number = {5789},
pages = {958--960},
doi = {10.1126/science.1128142}
}
Cite this
MLA
Copy
Liu, Yingxin, et al. “Switchable Surfactants.” Science, vol. 313, no. 5789, Aug. 2006, pp. 958-960. https://doi.org/10.1126/science.1128142.