Additional Homework Problems

CDP9-IB

(Anionic polymerization)

(a)   Determine the final number-average and weight-average chain lengths and molecular weights along with the extent of polymerization and polydispersity in an anionic polymerization for an initial monomer concentration of 2 M and for initiator concentrations of 1, 0.01, and 0.0001 M.
(b)   Calculate the radical concentration and polymer concentration as a function of time for j= 3, 7, 10 for the same monomer and initiator concentrations. ki=, kp= 100 dm3/mol*s
(c)   Repeat (b) for the case

and

with ki = 10 dm3/mol*s and Ki + 10-8 mol/dm3.