Rapid x-ray diffraction technique for determination of crystallinity of cellulosic materials



Predominant orientation or texture of cellulosic materials leads to the overestimation of the contribution from crystalline fractions when x-ray diffraction techniques are used for determination of crystallinity of these materials. Therefore it was attempted to determine the fraction of noncrystalline cellulose on the diffractomer by using a recalculating instrument to measure the scattering power at an angle 2θ = 32° from cellulose tablets, and by comparing these result with a reference sample. The method is convenient for process control procedures.