期刊
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
卷 6, 期 2, 页码 132-139出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S1359-0294(01)00072-3
关键词
polymer colloids; latex; SANS; SAXS; ASAXS; contrast variation
The analysis of latex particles by small-angle scattering (small-angle X-ray scattering, SAXS; small-angle neutron scattering, SANS) is reviewed. Small-angle scattering techniques give information on the radial structure of the particles as well as on their spatial correlation. Recent progress in instrumentation allows to extend SANS and SAXS to the q-range of light scattering. Moreover, contrast variation employed in SANS and SAXS studies may lead to an unambiguous determination of the radial scattering length density of the particles in situ, i.e. in suspension. Hence, these techniques are highly valuable for a comprehensive analysis of polymer colloids as shown by the examples discussed herein. (C) 2001 Elsevier Science Ltd. Ah rights reserved.
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