Sketch the polymer concentration, Pj, mole fraction of polymer
with j monomer units, yj, and the corresponding weight fraction,
wj, for j=2, 10, 20 as a function of monomer conversion in Styrene
polymerization for
(a) Termination by means other than
combination.
(b) Termination by combination. The molecular
weight of the monomer is 25 and its initial concentration is 3 M and the
initiator concentration is 0.01 M.
(c) How would your answers to
parts (a) and (b) change if the initiator concentration were 0.0001
M?
(d) What are the corresponding average molecular weights at X
= 0.2, 0.8, and 0.999?