Extrapolation to Zero
- Extrapolation to zero is used in osmometric determinations
(osmometry)
of molecular weight.
- As you approach zero, you eliminate polymer-polymer intermolecular
affects
- Extrapolation to zero is used in viscometric determinations
(viscometry)
of molecular weight (Mv)
- As you approach zero, you eliminate polymer-polymer intermolecular
affects
- Extrapolation to zero is used in
light scattering determinations
of molecular weight (Mw)
- As you approach zero concentration, you eliminate polymer-polymer
interactions.
- As you approach zero scattering angle the scattering decreases
, and you simplify a term of the equation on which the
Zimm plot is based, by forcing the
square of a sine function to go to zero.
Last Update- September 9, 1995- wld