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Analysis of complex forced Rayleigh scattering decay profiles for the diffusion of methyl yellow in binary solution SCIE SCOPUS

Title
Analysis of complex forced Rayleigh scattering decay profiles for the diffusion of methyl yellow in binary solution
Authors
Park, HSSung, JLee, HChang, TSpiegel, DR
Date Issued
1997-09-20
Publisher
KOREAN CHEMICAL SOC
Abstract
The nature and analysis methods of complicated decay profiles found in forced Rayleigh scattering (FRS) have been investigated for the probe diffusion of methyl yellow in 2-propanol. The complementary shifted and ground state grating effect, which is known to be the origin of non-single exponential decays, was analyzed by non-linear regression fitting to a double exponential model function. We confirmed that the parameters were highly correlated so that it was difficult to extract a unique set of parameters in the presence of experimental noise. Nevertheless, a reasonable range of decay time constants could be estimated from the grating spacing dependence.
Keywords
HOLOGRAPHIC RELAXATION SPECTROSCOPY; POLYMER-SOLUTIONS; TRACER DIFFUSION; PROBE DIFFUSION; POLYSTYRENE; DIFFRACTION; GRATINGS
URI
https://oasis.postech.ac.kr/handle/2014.oak/21198
ISSN
0253-2964
Article Type
Article
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 18, no. 9, page. 1006 - 1010, 1997-09-20
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장태현CHANG, TAIHYUN
Div of Advanced Materials Science
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