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Widely adaptable oil-in-water gel emulsions stabilized by an amphiphilic hydrogelator derived from dehydroabietic acid

Yan, Tingting; Song, Binglei; Pei, Xiaomei; Cui, Z G; Cui, Zhenggang; Binks, Bernard P.; Yang, Hengquan; Yan, B L; Song, X M; Pei; Binks; Yang, H Q

Authors

Tingting Yan

Binglei Song

Xiaomei Pei

Z G Cui

Zhenggang Cui

Hengquan Yang

B L Yan

X M Song

Pei

H Q Yang



Abstract

A surfactant, R-6-AO, derived from dehydroabietic acid has been synthesized. It behaves as a highly efficient low-molecular-weight hydrogelator with an extremely low critical gelation concentration (CGC) of 0.18 wt % (4 mm). R-6-AO not only stabilizes oil-in-water (O/W) emulsions at concentrations above its critical micelle concentration (cmc) of 0.6 mm, but also forms gel emulsions at concentrations beyond the CGC with the oil volume fraction freely adjustable between 2 % and 95 %. Cryo-TEM images reveal that R-6-AO molecules self-assemble into left-handed helical fibers with cross-sectional diameters of about 10 nm in pure water, which can be turned to very stable hydrogels at concentrations above the CGC. The gel emulsions stabilized by R-6-AO can be prepared with different oils (n-dodecane, n-decane, n-octane, soybean oil, olive oil, tricaprylin) owing to the tricyclic diterpene hydrophobic structure in their molecules that enables them to adopt a unique arrangement in the fibers.

Citation

Yan, T., Song, B., Pei, X., Cui, Z., Yang, H., & Binks, B. P. (2020). Widely adaptable oil-in-water gel emulsions stabilized by an amphiphilic hydrogelator derived from dehydroabietic acid. Angewandte Chemie, 59(2), 637-641. https://doi.org/10.1002/anie.201907774

Journal Article Type Article
Acceptance Date Oct 26, 2019
Online Publication Date Oct 31, 2019
Publication Date Jan 7, 2020
Deposit Date Nov 4, 2019
Publicly Available Date Nov 1, 2020
Journal Angewandte Chemie - International Edition
Print ISSN 1433-7851
Electronic ISSN 1521-3773
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 59
Issue 2
Pages 637-641
DOI https://doi.org/10.1002/anie.201907774
Keywords Gel emulsions; Low molecular weight hydrogelator; Self-assemble fibers; Dehydroabietic acid; Amine oxide
Public URL https://hull-repository.worktribe.com/output/3082925

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Copyright Statement
The authors are responsible for the content of this Accepted Article.



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