Scattering structure factor of colloidal gels characterized by static light scattering, small-angle light scattering, and small-angle neutron scattering measurements

被引：35
|
作者：
Wu, H [1 ]
Xie, JJ [1 ]
Lattuada, M [1 ]
Morbidelli, M [1 ]
机构：
[1] ETH Honggerberg, HCI, Inst Chem & Bioingn Wissensch, CH-8093 Zurich, Switzerland
来源：
LANGMUIR | 2005年 / 21卷 / 08期
关键词：
D O I：
10.1021/la047403n
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The scattering structure factor of a colloidal gel in a q range of 5 orders of magnitude has been determined by combining static light scattering, small-angle light scattering, and neutron scattering measurements. It exhibits simultaneously two types of structure information: a mass fractal scaling within the clusters that constitute the gel and a surface fractal scaling for length scales larger than that of the clusters. Such scattering behavior can be well interpreted by the pair-correlation function proposed in the literature to model an ideal structure constituted of mass fractal objects inside surface fractal objects.
引用
收藏
页码：3291 / 3295
页数：5
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