Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F19%3APU133668" target="_blank" >RIV/00216305:26310/19:PU133668 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.hanser-elibrary.com/doi/abs/10.3139/113.110633" target="_blank" >https://www.hanser-elibrary.com/doi/abs/10.3139/113.110633</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3139/113.110633" target="_blank" >10.3139/113.110633</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide

Popis výsledku v původním jazyce

The aggregation behaviour of the cationic surfactant carbethopendecinium bromide (Septonex) and cetyltrimethylammonium bromide (CTAB) in aqueous solution was investigated by steady-state and time-resolved fluorescence experiments. Values of critical micelle concentration were obtained from the pyrene emission polarity index. The micellar aggregation numbers for four different concentrations of both surfactants were determined by steady-state and time-resolved fluorescence quenching methods, using pyrene as a probe and cetylpyridinium chloride as a quencher. The obtained results for Septonex were compared with the aggregation parameters of CTAB. Generally, Septonex micelles were formed by a smaller number of surfactant monomers than in the case of CTAB and the critical micelle concentration of Septonex is lower than that of CTAB. Also, the concentration dependence of the micelle aggregation number was found.

Název v anglickém jazyce

Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide

Popis výsledku anglicky

The aggregation behaviour of the cationic surfactant carbethopendecinium bromide (Septonex) and cetyltrimethylammonium bromide (CTAB) in aqueous solution was investigated by steady-state and time-resolved fluorescence experiments. Values of critical micelle concentration were obtained from the pyrene emission polarity index. The micellar aggregation numbers for four different concentrations of both surfactants were determined by steady-state and time-resolved fluorescence quenching methods, using pyrene as a probe and cetylpyridinium chloride as a quencher. The obtained results for Septonex were compared with the aggregation parameters of CTAB. Generally, Septonex micelles were formed by a smaller number of surfactant monomers than in the case of CTAB and the critical micelle concentration of Septonex is lower than that of CTAB. Also, the concentration dependence of the micelle aggregation number was found.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA16-12477S" target="_blank" >GA16-12477S: Hydrogely s integrovanými hydrofobními nanodoménami - struktura, transportní a uvolňovací vlastnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Tenside Surfactants Detergents

ISSN

0932-3414

e-ISSN

—

Svazek periodika

56

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

300-305

Kód UT WoS článku

000485123500005

EID výsledku v databázi Scopus

2-s2.0-85073660744