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An examination of the chemical and physical properties of gels in wood and linters cellulose acetates was carried out with special emphasis on light‐scattering and electron microscopy. Gels were fractionated by filtration, centrifugation, and dialysis techniques to produce gels over and under 15 microns in size. The predominant phenomena observed in the small gels are nearly monodisperse spherical or potato‐shaped gels of about 0.3 micron in dispersion (light‐scattering) and 0.1 micron dry (electron microscopy). Chemical analysis shows these gels much enriched in xylan. The large gels were examined also and were found to consist of fibers (cellulose I) and plates (cellulose triacetate).
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Sperling et al. (1960) studied this question.
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