Přístupnostní navigace
E-application
Search Search Close
Publication detail
HOLÍNKOVÁ, P. PEKAŘ, M.
Original Title
Fluorescence study of aggregation behaviour of cationic surfactant carbethopendecinium bromide and its comparison with cetyltrimethylammonium bromide
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Septonex; CTAB; Critical micelle concentration; Aggregation number; Pyrene emission polarity index
Authors
HOLÍNKOVÁ, P.; PEKAŘ, M.
Released
1. 8. 2019
ISBN
0932-3414
Periodical
Tenside Surfactants Detergents
Year of study
56
Number
4
State
Federal Republic of Germany
Pages from
300
Pages to
305
Pages count
6
URL
https://www.hanser-elibrary.com/doi/abs/10.3139/113.110633
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" }