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KMID : 1059519980420020156
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Journal of the Korean Chemical Society
1998 Volume.42 No. 2 p.156 ~ p.160
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Latex Particles's Behavior in Chemically Cross-Linked Gels
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Jang Kyung-Ho
Sohn Dae-Won
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Abstract
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Probe diffusion with latex particles in two different types of chemically cross linked gel has been studied. The diffusion of particles in silica gel is decreased by decreasing the gel correlation length but the particles' diffusion in the acrylamide gel still shows the heterogeneity of the gel. By increasing the contents of the gel network the silica gel makes a more homogeneous and compact structure than that of acrylamide gel which has partial heterodyning. Dynamic light scattering study with the probe particles in two different gels reveals the heterogeneity of the gel network. The latex particles trapping in the gel has been investigated by using non-ergodic concepts.
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KEYWORD
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