Gemini Surfactants with Polymethylene Spacer: Supramolecular Structures at Solid Surface and Aggregation in Aqueous Solution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16370%2F16%3A43874676" target="_blank" >RIV/62157124:16370/16:43874676 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26310/16:PU118257
Result on the web
<a href="http://dx.doi.org/10.1007/s11743-016-1797-8" target="_blank" >http://dx.doi.org/10.1007/s11743-016-1797-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11743-016-1797-8" target="_blank" >10.1007/s11743-016-1797-8</a>
Alternative languages
Result language
angličtina
Original language name
Gemini Surfactants with Polymethylene Spacer: Supramolecular Structures at Solid Surface and Aggregation in Aqueous Solution
Original language description
Aggregation of alpha,omega-bisammonium cationic gemini surfactants with a variable polymethylene spacer and two dodecyl chains has been studied on a solid surface and in aqueous solution. Scanning electron microscopy and dynamic light scattering with the time-resolved fluorescence quenching technique were used for the experiments on the solid surface and in aqueous solution, respectively. As the results from the scanning electron microscopy indicate, the morphology of supramolecular structures of gemini surfactants at the solid surface depends on the spacer length. In aqueous solution, gemini surfactants with spacers consisting of 4, 6, 8, 10, and 12 CH2 groups form spherical micelles with diameters between 2 and 3.5 nm. Micelles of gemini surfactant with a short ethylene spacer show an increase in size up to 13 nm at the maximum concentration investigated. The aggregation number of micelles determined by time resolved fluorescence quenching was found to be in the range 14-25 for the spacer lengths from 6 to 12 CH2 groups with only a moderate increase with surfactant concentration. For micelles of gemini surfactants with the short ethylene spacer, the increase of the aggregation number up to 50 at the maximum concentration was observed. The findings support micellar growth of gemini surfactants with short ethylene spacer.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
FR - Pharmacology and apothecary chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of surfactants and detergents
ISSN
1097-3958
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
477-486
UT code for WoS article
000374679900005
EID of the result in the Scopus database
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