Question

The correct statement for a thermally initiated radical polymerization in a solution is :
(Assume: Steady-state and equal reactivity of the propagating radicals, termination reactions are only by combination, and no chain transfer reaction.
Given: Rp = rate of polymerization, DP = degree of polymerization, [I] = initiator concentration, and [M] = monomer concentration.)

• A. with increase in [I], both Rp and DP increase.
• B. with increase in [M], both Rp and DP increase.
• C. Rp decreases with increase in [I] but DP increases with increase in [M]
• D. DP increases with increase in [I] and DP decreases with increase in [M].

Answer 1

The Correct Option is B

The correct option is (B) : with increase in [M], both Rp and DP increase.