Applications of Prism‐Cell Light‐Scattering Spectrometer to Particle Sizing in Polymer Solutions

Benjamin Chu, Renliang Xu, Sulong Nyeo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A prism‐cell light‐scattering spectrometer has been modified to accept both a diode‐array detector for measurements of angular distribution of scattered intensity and a photomultiplier tube for measurements of time‐dependent intensity‐intensity correlation function. This spectrometer permits the practice of light scattering at small scattering angles down to a few degrees. Here we make a brief study of the reliability of characteristic linewidth distributions obtained by several methods of analysis on the correlation data, which correspond to a reasonably broad unimodal distribution. Then the prism‐cell light‐scattering spectrometer is used to characterize a polymer solution consisting of two different molecular weights. To obtain characteristic linewidth distribution, the correlation data are analyzed by both the constrained regularization method (CONTIN) and the maximum‐entropy method (MEM).

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalParticle & Particle Systems Characterization
Volume6
Issue number1-4
DOIs
Publication statusPublished - 1989

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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