Accession Number : AD0644105

Title :   THE SCATTERING OF LIGHT BY DEFORMED THREE-DIMENSIONAL SPHERULITES.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS UNIV AMHERST POLYMER RESEARCH INST

Personal Author(s) : VAN Aartsen,J. J. ; Stein,Richard S.

Report Date : 01 MAR 1966

Pagination or Media Count : 50

Abstract : The report gives an account of some theoretical calculations, based upon two different 'affine transformation' models, as described previously. The preliminary results for two dimensional, disc-like spherulites are now extended to the three dimensional case and at the same time reorientation of the crystallites inside the spherulite is included. Although the calculations are carried out for the case of the stretching direction coinciding with the direction of polarization of the incident beam, the calculations are set up more generally and from the formulas derived in this report one can easily perform the calculations for the case that the stretching direction makes a certain angle psi with the polarization direction of the incident beam. The theory in this report is developed for non-ringed spherulites, that is, spherulites in which no regular helicoidal twisting of the crystallites around the spherulite radius occurs. We can, however, on the same basis develop equations for ringed spherulites. Light scattering intensity contours are presented for various combinations of the spherulitic parameters. (Author)

Descriptors :   (*LIGHT, SCATTERING), (*SPHERES, LIGHT TRANSMISSION), DEFORMATION, CRYSTALS, THEORY

Subject Categories : Crystallography
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE