The Investigation of the Properties of Nitrocellulose Molecules in Solution by Light-Scattering Methods. I. Experimental Procedures.

The Investigation of the Properties of Nitrocellulose Molecules in Solution by Light-Scattering Methods. II. Experimental Results and Intepretations.

“…The results of the light-scattering and viscosity measurements are presented in table 2 and quantities derived from them in tables 3 and 4. For correlation with these data diffusion constants are much to be desired, but unfortunately accurate diffusion measurements on nitrocellulose fractions do not appear to have been made.…”

Sedimentation Equilibria of Polydisperse Non-Ideal Solutes. IV. Association ;n Di-lute Cellulose Acetate Solutions.

“…In addition, difficulty has been encountered in removing traces of so-called "impurities" from solutions of cellulose derivatives in preparation for lightscattering measurements (5,22). Very large changes in dissymmetry and molecular weight have been reported (5) after high-speed centrifugation as compared to filtration.…”

“…In addition, difficulty has been encountered in removing traces of so-called "impurities" from solutions of cellulose derivatives in preparation for lightscattering measurements (5,22). Very large changes in dissymmetry and molecular weight have been reported (5) after high-speed centrifugation as compared to filtration. Association of cellulose acetate in dilute solution has also been detected (10) by the fact that it has a higher number-average molecular weight in methyl cellosolve than in acetone, and by sedimentation velocity experiments.…”

“…"impurities" from solutions of cellulose derivatives in preparation for lightscattering measurements (5,22). "impurities" from solutions of cellulose derivatives in preparation for lightscattering measurements (5,22).…”

The Comparison of Molecular Weights of Polystyrene by the Light-Scattering and Osmometric Methods.

“…Since the pioneering work of Debye (3) established the light-scattering method as a means of determining molecular weights of polymers, there has been a great deal of published work (2,7,8,12) on determining the usefulness and limitations of the method. Nearly all of this research has been concentrated on polymer fractions below 400,000 in molecular weight.…”