L

4. In a living polymerization, chain length simplifies to [M]/[I]o because all initiation leads

to polymerization and there are no termination steps. Given a radical polymerization with

[M] = 4.5 M and [I]o = 1.25 mM, compare chain length in the following situations:

a. a living polymerization

(5-points)

=

b. a non-living polymerization with f = 0.5; kpk = 0.003s-1; kg = 0.0001 s-1.

(5-points)

c. a non-living polymerization with f = 0.5; p = 0.003s-1; k= 0.3s-1; ka=0.0001

s-1.

(5-points)

d. a non-living polymerization with f = 0.5; p = 0.003s¹; k= 0.003s¹; ka=0.1s¹.

(5-points)