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Instability in pressure‐dependent sedimentation of monomer—polymer systems
Author(s) -
Johnson Michael,
Yphantis David A.,
Weiss George H.
Publication year - 1973
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1973.360121104
Subject(s) - chemistry , monomer , sedimentation , diffusion , thermodynamics , instability , convection , polymer , stability (learning theory) , mechanics , physics , geology , paleontology , organic chemistry , machine learning , sediment , computer science
The possibility of convection in velocity sedimentation studies on pressure dependent associating systems is known both experimentally and theoretically. We present accurate numerical solutions to the Lamm equation to illustrate this phenomenon for monomer–polymer systems. An approximate theory based on the absence of diffusion is then developed to predict the onset of convection. Comparison of the theory with the numerical solutions shows it to be quite accurate.