Detail publikačního výsledku

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

HOLÍNKOVÁ, P.; PEKAŘ, M.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Septonex; CTAB; Critical micelle concentration; Aggregation number; Pyrene emission polarity index

Klíčová slova v angličtině

Septonex; CTAB; Critical micelle concentration; Aggregation number; Pyrene emission polarity index

Autoři

HOLÍNKOVÁ, P.; PEKAŘ, M.

Rok RIV

2020

Vydáno

01.08.2019

ISSN

0932-3414

Periodikum

TENSIDE SURFACTANTS DETERGENTS

Svazek

56

Číslo

4

Stát

Spolková republika Německo

Strany od

300

Strany do

305

Strany počet

6

URL

https://www.hanser-elibrary.com/doi/abs/10.3139/113.110633

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT159275,
  author="Petra {Holínková} and Miloslav {Pekař}",
  title="Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide",
  journal="TENSIDE SURFACTANTS DETERGENTS",
  year="2019",
  volume="56",
  number="4",
  pages="300--305",
  doi="10.3139/113.110633",
  issn="0932-3414",
  url="https://www.hanser-elibrary.com/doi/abs/10.3139/113.110633"
}