
Accession Number : AD0714980
Title : Particle Scattering Factor and SegmentSegment Distance Distribution of Macromolecules in Solution,
Corporate Author : KONINKLIJKE/SHELLLABORATORIUM AMSTERDAM (NETHERLANDS)
Personal Author(s) : Mijnlieff,P. F. ; Coumou,D. J. ; Meisner,J.
Report Date : 02 FEB 1970
Pagination or Media Count : 14
Abstract : The angular dependence of light scattering from solutions of three samples of polyalphamethylstyrene in various solvents has been measured over a wide range of scattering angles. For molecules with a radius of gyration larger than about 500 A, differences (Delta P) are found between the actual angular dependence (P) and the one (P(id)) predictedwith Debye's equationfor ideal Gaussian coils. By subjecting the measured data to a statistical analysis, a quantitative description of Delta P was attained. The quantities Delta P contain information about the function Delta W(r), which is the difference between W(r) and W(id)(r); the function W(r) is the actual distribution function for the distances between the segments in a polymer coil, whereas W(id)(r) is the one that follows from randomflight statistics, underlying the ideal Gaussian coil model. (Author)
Descriptors : (*POLYMERS, SCATTERING), LIGHT, SOLUTIONS(MIXTURES), MOLECULAR STRUCTURE, MATHEMATICAL ANALYSIS, NETHERLANDS
Subject Categories : Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE