Particle sizing in highly turbid dispersions by Photon Density Wave spectroscopy: Bidisperse systems

被引：12
|
作者：
Bressel, L. [1 ]
Wolter, J. [1 ]
Reich, O. [1 ]
机构：
[1] Univ Potsdam, Inst Chem Phys Chem, innoFSPEC Potsdam, D-14476 Potsdam, Germany
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2015年 / 162卷
关键词：
Photon Density Wave spectroscopy; Dependent multiple light scattering; Hard sphere interaction; Percus-Yevick approximation; Particle sizing; Bidisperse polymer dispersions; SUSPENSIONS; MIGRATION;
D O I：
10.1016/j.jqsrt.2015.01.025
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Photon Density Wave (PDW) spectroscopy is applied for characterizing the scattering properties, i.e. the reduced scattering coefficient mu'(S), of highly concentrated mono- and bidisperse polymer latices. The theory for dependent scattering is reviewed and analytical expressions for the structure factors for hard sphere interaction in mono- (HSPYA) and bidisperse (BHSPYA) systems are given. From the scattering properties particle sizes of mono- and bidisperse polystyrene latices are determined as well as the relative amount of small and large particles for the bidisperse case. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：213 / 220
页数：8
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