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Figure 5
Distance distribution functions of the PU/PMMA latex particles suspended in various contrast sucrose solutions with electron densities in a range between the average electron density of the shell and the core of the particles fitted with the model of normal distribution of particles with variable electron densities, equation (1)[link] (left-hand side, the obtained parameters are: Rc = 259 Å, R = 378 Å, ξc = 0.379 e Å−3, ξs = 0.366 e Å−3, σc = 0.018 e Å−3 and σs = 0.005 e Å−3) and with the core–shell model, pcs(r) (right-hand side, the obtained parameters are: Rc = 277 Å, R = 366 Å, ξc = 0.377 e Å−3, ξs = 0.366 e Å−3). Numbers presented on each plot indicate mass density (in g cm−3) of the corresponding contrast solutions. The distance distribution functions have been normalized by the maximum value obtained in p(r) of the latex particles diluted in a water solution (ρm ≃ 1.0 g cm−3).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part s1| January 2007| Pages s506-s511
doi:10.1107/S0021889807001616
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