FRACTAL SCALING OF SMALL-ANGLE NEUTRON-SCATTERING FROM NONIONIC MICELLAR SOLUTIONS BELOW THE CLOUD TEMPERATURE

Authors
MENON SVG GOYAL PS DASANNACHARYA BA THIYAGARAJAN P
Citation
Svg. Menon et al., FRACTAL SCALING OF SMALL-ANGLE NEUTRON-SCATTERING FROM NONIONIC MICELLAR SOLUTIONS BELOW THE CLOUD TEMPERATURE, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 53(6), 1996, pp. 6569-6572
Citations number
29
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
53
Issue
6
Year of publication
1996
Part
B
Pages
6569 - 6572
Database
ISI
SICI code
1063-651X(1996)53:6<6569:FSOSNF>2.0.ZU;2-Y
Abstract
Power-law variations of small-angle neutron-scattering intensities fro m nonionic micellar solutions of isooctylphenoxy polyethoxy ethanol (T riton X-100) in D2O for a range of concentrations (1-4 wt %) and tempe ratures (295-335 K) are interpreted in terms of simple models of fract al aggregates. The results show a large increase in dimensionality fro m similar to 1 at ambient temperature to similar to 2.3 near the cloud points. The variation of. fractal dimension with temperature is almos t the same for the three concentrations studied. Thus one arrives at a picture of micellar aggregates becoming more and more tenuous as clou d points are approached.