Williams-Landel-Ferry (WLF) Equation
(Sperling-482)
A quote from an original article
Sometimes the viscosity of the polymer in the solvent divided by pure
solvent is called A(T).
The WLF equation ties in to the
a worked example of time-temperature superposition data.
.
A
graph of a mechanical property vs. some test which relates to time
can be taken, using several different temperatures to produce isotherms.
Last Update, July 4, 1995- wld