(e) Pure liquid styrene (phenylethene) is polymerized by adding a soluble peroxide initiator. When ial monomer concentration is 2.07 M and the peroxide concentration is 2 x 104 M, the initial polymerization (Vp) is 2.49 x 103 M min'. The rate constant for the decomposition of the er (k¡ ) is 5.7 x 10³ min'. termine the ratio kp/ (kt)*. State any assumptions. culate the expected number average molecular weight assuming termination takes place by mutual termination only.

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(e)
Pure liquid styrene (phenylethene) is polymerized by adding a soluble peroxide initiator. When
the initial monomer concentration is 2.07 M and the peroxide concentration is 2 x 104 M, the
initial
rate of polymerization (vp) is 2.49 x 103 M min . The rate constant for the decomposition
of the
initiator (k; ) is 5.7 x 103 min!.
(i) Determine the ratio kp/ (kt). State any assumptions.
(ii) Calculate the expected number average molecular weight assuming termination takes place
by mutual termination only.
Transcribed Image Text:(e) Pure liquid styrene (phenylethene) is polymerized by adding a soluble peroxide initiator. When the initial monomer concentration is 2.07 M and the peroxide concentration is 2 x 104 M, the initial rate of polymerization (vp) is 2.49 x 103 M min . The rate constant for the decomposition of the initiator (k; ) is 5.7 x 103 min!. (i) Determine the ratio kp/ (kt). State any assumptions. (ii) Calculate the expected number average molecular weight assuming termination takes place by mutual termination only.
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