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Chapter 30: Question 30.39 (page 1226)

Draw a stepwise mechanism for the polymerization of isoprene to gutta-percha using(CH3)3CO-OC(CH3)3as the initiator.

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Answer

Mechanism

Step by step solution

01

Free radical addition reaction

The reagent 2-ethylperoxy-2-methylpropane, releases free radical on exposure to light. This compound acts as an initiator for the stepwise polymerization of isoprene.

02

Gutta-percha

The plastic material used in the root canal treatment of teeth is gutta-percha. It is a natural polymer and similar to natural rubber. Both natural rubber and gutta-percha differ in the arrangements of monomers.

03

Mechanism

The stepwise mechanism of the reaction involves initiation, propagation, and termination, and it is as shown below:

Mechanism

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