Gemini Surfactants with Polymethylene Spacer: Supramolecular Structures at Solid Surface and Aggregation in Aqueous Solution

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>

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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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FR - Pharmacology and apothecary chemistry

OECD FORD branch

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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

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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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