Light-scattering and small-angle neutron-scattering investigations of double-tailed surfactants in aqueous solutions
Aqueous solutions of sodium p-(1-pentylheptyl)benzenesulfonate (6-PhC/sub 12/SNa) at 45/sup 0/C were investigated using static and dynamic light scattering (LS) and static small-angle neutron scattering (SANS) measurements. The SANS studies in D/sub 2/O were performed in the concentration range 0.0099-0.0991 M; Guinier radii (R/sub G/) of 13.7 to 16.6 A were determined. Scattering curves for the more concentrated solutions show an interaction peak which arises from intermicellar correlations; the effect of added NaCl, at a constant surfactant concentration of 0.0845 M, on these interactions was also studied. The SANS measurements were complemented by static and dynamic LS studies on 0.0845 M 6-PhC/sub 12/SNa in H/sub 2/O, with and without added salt. Non-single exponential behavior was observed in the intensity autocorrelation functions, and two interpretations of the slow process(es) are briefly discussed.
- Research Organization:
- Tennessee Univ., Knoxville (USA). Dept. of Chemistry; Oak Ridge National Lab., TN (USA); Palermo Univ. (Italy). Ist. di Chimica Fisica; Michigan Univ., Ann Arbor (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5854836
- Report Number(s):
- CONF-8206204-1; ON: DE83014013
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AQUEOUS SOLUTIONS
BARYONS
CHEMICAL ANALYSIS
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ESTERS
FERMIONS
HADRONS
HEAVY WATER
HYDROGEN COMPOUNDS
MIXTURES
NEUTRONS
NONDESTRUCTIVE ANALYSIS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM SULFONATES
RADIATION SCATTERING ANALYSIS
RADIATIONS
SCATTERING
SOLUTIONS
STRUCTURAL CHEMICAL ANALYSIS
SULFONATES
SULFONIC ACID ESTERS
SURFACTANTS
VISIBLE RADIATION
WATER