Apparatus and Methods for Measurement and Interpretation of the Angular Variation of Light Scattering; Preliminary Results on Polystyrene Solutions

A photoelectric apparatus for the measurement of the angular dependence of light scattering from solutions is described in detail and its performance is discussed. Methods of calculation for the determination of the average extension of the scattering molecules from the data are described. Data are presented for two fractions of polystyrene in various solvents, showing the effect of changing solvent power and temperature, and also confirming a theoretically derived formula for the concentration dependence of the scattering.

[1]  L. P. Hunter,et al.  The photomultiplier x-ray detector. , 1947, The Review of scientific instruments.

[2]  P. Debye,et al.  Molecular-weight determination by light scattering. , 1947, The Journal of physical and colloid chemistry.

[3]  V K LA MER,et al.  The determination of the particle size of monodispersed systems by the scattering of light. , 1947, Journal of the American Chemical Society.

[4]  P. Doty,et al.  The depolarization of light scattered from polymer solutions. , 1945, The Journal of physical chemistry.

[5]  P. Debye.  A Photoelectric Instrument for Light Scattering Measurements and a Differential Refractometer , 1946 .

[6]  J. M. Sturtevant.  A stable selective audio amplifier. , 1947, The Review of scientific instruments.

[7]  Bruno H. Zimm,et al.  Application of the Methods of Molecular Distribution to Solutions of Large Molecules , 1946 .

[8]  P. Doty,et al.  Some Light Scattering Experiments with High Polymer Solutions , 1944 .

[9]  R. Scott.  The Thermodynamics of High‐Polymer Solutions: II. The Solubility and Fractionation of a Polymer of Heterogeneous Distribution , 1945 .

[10]  P. Doty,et al.  The determination of macromolecular configurations in dilute solution by light scattering , 1946 .

[11]  P. Flory,et al.  Fundamental principles of condensation polymerization. , 1946, Chemical reviews.

[12]  G. Sutherland,et al.  Scattering of Light and the Raman Effect , 1941, Nature.

[13]  H. Mark,et al.  Intrinsic viscosity‐molecular weight relationship for polystyrene , 1947 .

[14]  W. J. Taylor,et al.  Average Length and Radius of Normal Paraffln Hydrocarbon Molecules , 1948 .

[15]  P. Doty,et al.  A Light Scattering Investigation of Cellulose Acetate1 , 1946 .