Occurrence of small-angle x-ray diffraction maxima in some artificial cellulose fibers

An x-ray technique is used permitting the identification of Bragg spacings of at least 300 A. Wet Fiber G and Fortisan give max. equatorial scatterings corresponding to spacings of 77 and 84 A., resp. The latter also gives continuous small angle scattering increasing steeply towards the primary beam. These observations indicate pronounced lateral periodicity in these 2 rayons.