Abstract
THE scattering of X-rays at small angles by fibres furnishes important information about their microcrystalline structure. In a systematic study of this type of X-ray scattering by fibres1, it was found that in the swollen condition these materials exhibit a more intense scattering over a much wider angle than in the dry state; this has been confirmed by others2,3. The effect was explained by the denser packing of the scattering particles (microcrystallites) in the dry state, and the greater extent of interference of the scattered radiation from neighbouring particles to be expected in this condition, as compared to the swollen condition where the particles scatter more independently.
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References
Heyn, A. N. J., J. Amer. Chem. Soc., 70, 3138 (1948); Text. Res. J., 19, 163 (1949); J. Amer. Chem. Soc., 72, 2284 (1950 a); 72, 5768 (1950 b).
Kriegl, Von H., Kratky, O., and Porod, G., Z. Elecktrochem., 50, 146 (1952).
Heikens, D., Hermans, P. H., and Weidinger, A., Nature, 170, 369 (1952).
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HEYN, A. Small-Angle X-Ray Scattering and Interparticle Interference in Rayons. Nature 172, 1000–1001 (1953). https://doi.org/10.1038/1721000a0
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DOI: https://doi.org/10.1038/1721000a0
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