PMID: 12786146Jun 6, 2003Paper

Selective counterion condensation in ionic micellar solutions

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Vinod K Aswal, Prem S Goyal

Abstract

Small-angle neutron scattering experiments have been carried out on micellar solutions of cationic surfactants of cetyltrimethylammonium bromide (CTABr) and chloride (CTACl) in the presence of varying concentrations of salts KBr and KCl. In these systems, while the size of micelles strongly increases with the addition of KBr, the effect of addition of KCl in comparison is much less pronounced. It is found that in equimolar surfactant to salt micellar solutions of CTABr/KCl and CTACl/KBr, the micellar sizes are larger in CTACl/KBr than those in CTABr/KCl. The measurements have been done for different equimolar surfactant to salt concentrations and at different temperatures. We explain these results in terms of selective counterion condensation on the micelles. That is, while the condensation of Cl- counterions on the CTABr micelles in CTABr/KCl takes place around the condensed Br- counterions of CTABr, the Cl- counterions of CTACl in CTACl/KBr are replaced by Br- counterions of the salt. Similar results have also been obtained on micellar solutions of anionic surfactants of sodium dodecyl sulfate and lithium dodecyl sulfate in the presence of salts LiBr and NaBr, respectively.

References

Sep 1, 1996·Progress in Surface Science·A G VolkovV S Markin

❮ Previous
Next ❯

Citations

Feb 7, 2012·Proceedings of the National Academy of Sciences of the United States of America·Kaylie L YoungChad A Mirkin
Apr 26, 2005·The Journal of Chemical Physics·Chin Chieh HsiaoHeng-Kwong Tsao
Nov 30, 2006·The Journal of Chemical Physics·Tzu-Yu WangHeng-Kwong Tsao
Feb 22, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Viviane Lutz-BuenoPeter Fischer
Aug 1, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Sumit MehanJoachim Kohlbrecher
Jun 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S ChodankarA G Wagh
Aug 8, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·V K AswalA G Wagh
Jul 6, 2012·The European Physical Journal. E, Soft Matter·A J ChinchalikarA G Wagh
Oct 16, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Sumit MehanJoachim Kohlbrecher
Dec 31, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S Chodankar, V K Aswal
Jul 16, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A J ChinchalikarA G Wagh
Oct 11, 2008·The Journal of Physical Chemistry. B·Arben JusufiAthanassios Z Panagiotopoulos
Aug 6, 2010·The Journal of Physical Chemistry. B·Wenhong Yang, Xiaozhen Yang
Sep 23, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·J DeyK Ismail
May 31, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Connie K Liu, Gregory G Warr
Aug 24, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Sumit MehanRalf Schweins
Sep 7, 2013·The Journal of Physical Chemistry. B·Flore KeymeulenKristin Bartik
Sep 3, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Connie K Liu, Gregory G Warr

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Yu-Jane Sheng, Heng-Kwong Tsao
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Wei Lun HsinHeng-Kwong Tsao
© 2022 Meta ULC. All rights reserved