Chapter 15, Problem 15.70P

Interpretation Introduction

Interpretation: An explanation corresponding to the statement that polystyrene is much more readily oxidized by ${\text{O}}_{\text{2}}$ in air than polyethylene is to be stated. The $\text{H}$’s in polystyrene that are easily abstracted are to be identified and an explanation for their abstraction is to be stated.

Concept introduction: The general steps followed by free-radical addition reaction are stated below:

1. First step is initiation that involves formation of radical.

2. Second step is propagation.

3. Third step is the termination that involves the formation of stable bond.