Page 407 - Elements of Chemical Reaction Engineering Ebook

378 Nonelementary Reaction Kinetics Chap. 7

Next we ttansform Equation (7-60) to

and then substitute for R1:

dR, +R, = roe-@
dO
With the aid of the idtegrating factor, e@, along with the initial condition that
at t = 0, 0 = 0, R2 = 0, we obtain

R2 = Zo(Oe-@)

In a similar fashion,

In general,

Concentration of
live polymer of (7-66)
chain length j

The live polymer concentrations are shown as a function of time and of chain
length and time in Figures 7-8 and 7-9, respectively.

Anionic
polymerization

e
Figure 7-8 Live polymer concentration as a function of scaled time.