Maximum-Entropy Analysis of Photon Correlation Spectroscopy Data

Su Long Nyeo, Benjamin Chu

研究成果: Article同行評審

42 引文 斯高帕斯(Scopus)

摘要

The maximum-entropy formalism is briefly reviewed and then applied as a data analysis tool to estimating characteristic line-width distributions from photon correlation spectroscopy data. Two methods for solving the nonlinear maximum-entropy constrained optimization problem for maximal entropy characteristic line-width distributions are described. The reliability of the formalism is then tested by analyzing several sets of numerically simulated correlation data, which correspond to very broad unimodal characteristic line-width distributions, bimodal distributions, and a negatively skewed unimodal distribution. Experimental data of semidilute ternary solutions consisting of a four-arm star polystyrene (PS) and a linear poly(methyl methacrylate) (PMMA) in toluene are analyzed by the maximum-entropy formalism. From the behavior of the reconstructed characteristic line-width distributions, we can show a definite influence of the invisible (isorefractive) but entangled PMMA on the visible PS coils.

原文English
頁(從 - 到)3998-4009
頁數12
期刊Macromolecules
22
發行號10
DOIs
出版狀態Published - 1989 十月 1

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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