FIG. 5.

Diagram of a typical spectrophotometric measurement for quantification of polymerization kinetics. The polymerization half-time t_1/2 is defined as the time at which half of the total change in absorbance ΔAbs/2 is attained. The rate of change of absorbance at the half-time is defined as the polymerization rate dAbs/dt, while the lag time is defined as the zero-absorbance intercept of the line with slope dAbs/dt and intercepting (t_1/2, ΔAbs/2). Color images available online at www.liebertpub.com/teb