Preferred Label : hydrodynamically equivalent sphere;
Detailed label : hydrodynamically equivalent sphere in polymers;
IUPAC definition : A hypothetical sphere, impenetrable to the surrounding medium, displaying in a hydrodynamic
field the same frictional effect as an actual polymer molecule. The size of a hydrodynamically
equivalent sphere may be different for different types of motion of the macromolecule,
e.g. for diffusion and for viscous flow.;
Origin ID : H02896;
See also
A hypothetical sphere, impenetrable to the surrounding medium, displaying in a hydrodynamic
field the same frictional effect as an actual polymer molecule. The size of a hydrodynamically
equivalent sphere may be different for different types of motion of the macromolecule,
e.g. for diffusion and for viscous flow.
