TRIDIMENSIONAL PROFILE FUNCTIONS IN STRUCTURE-ANALYSIS OF CRYSTALLINE FIBERS BY THE WHOLE-PATTERN METHOD - DEPENDENCE ON CRYSTAL SIZE AND CRYSTALLITE ORIENTATION

With the aim of implementing crystal structure refinement programs applicable to fibrous materials and on the basis of the whole-pattern approach, theoretical functions have been developed expressing the continuous diffraction intensity versus crystal size and misalignment parameters. Applications of this function to two synthetic polymers, polyisobutylene and isotactic polypropylene, has afforded an excellent agreement between observed and calculated intensity. © 1990, American Chemical Society. All rights reserved.