Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 113, Issue 17, Pages 5863-5870Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp901228v
Keywords
-
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada
- NSF-DMR [0449184]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0449184] Funding Source: National Science Foundation
Ask authors/readers for more resources
The properties of sodium dodecyl sulfate (SDS) aggregates in saline solutions of excess sodium chloride (NaCl) or calcium chloride (CaCl2) ions were studied through extensive molecular dynamics simulations with explicit solvent. We find that the ionic strength of the Solution affects not only the aggregate size of the resulting anionic micelles but also their structure. Specifically, the presence of CaCl2 induces more compact and densely packed micelles with a significant reduction in gauche defects in the SDS hydrocarbon chains in comparison with NaCl. Furthermore, we observe significantly more stable salt bridges between the charged SIDS head groups mediated by Ca2+ than Na+. The presence of these salt bridges helps stabilize the more densely packed micelles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available