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, HS; Sung, J; Lee, H; Chang, T; Spiegel, 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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