Scattering of light from oriented polymer films. II
β Scribed by Stein, R. S. ;Hashimoto, T.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1970
- Tongue
- English
- Weight
- 706 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0449-2978
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β¦ Synopsis
Abstract
A statistical theory for the scattering of light from oriented polymer films is developed in terms of angularly dependent generalized correlation functions. Numerical calculations of scattering patterns are carried out for special cases. The scattering depends upon two types of distributions describing (1) the orientation distribution of optical axes of scattering elements and (2) the angular dependence of correlation in orientation between pairs of optic axes. These distributions are expanded in Fourier series (in a twoβdimensional treatment), the coefficients of which are functions of elongation and describe the elongation dependence of the scattering patterns.
π SIMILAR VOLUMES
## Abstract The theory for scattering of light from films in which the orientation correlation between two scattering elements depends upon the angle Ξ² between the optic axes and the vector connecting the two elements is extended. A deltaβfunction type dependence is assumed in which the correlation
## Abstract It has been considered for some time that the presence of birefringence in an oriented polymer must affect the lightβscattering behavior. Previous analyses of this phenomenon are restricted to singleβparticle scattering. A more complete theory of the effect of birefringence on the scatt
Applications of both polarized and depolarized dynamic light scattering to the study of polymers are described. Polarized light scattering is used to study translational diffusion, diffusion virial coefficients, rotational motion of long rod-shaped polymers, longwavelength intramolecular motions, dy