I. Remarks on the Archibald Technique for Determining Molecular Weights in the Ultracentrifuge. II. The Hydrodynamic Alignment of Rod-like Molecules in Centrifugal Fields

Author: Peterson, James Macon

Year: 1963

Degree: Dissertation (Ph.D.)

Advisor: Mazo, Robert M.

Committee Member: Unknown, Unknown

Option: Chemistry; Physics

DOI: 10.7907/VZXF-V320

Abstract

I. The theoretical validity of the linear extrapolation of concentration gradient usually used in Archibald measurements of molecular weights is discussed.

II. Intrinsic and concentration-dependent hydrodynamic alignment of rod-like molecules are considered in an attempt to explain the observed increased sedimentation coefficients with field and concentration. An entropy mechanism is also discussed.

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