Given the information that free-radical stability follows the same order as carbocation stability (3 > 2 > 1), predict the structure of polypropylene produced by the free-radical polymerization of propene. It should help to write out each step in the mechanism, as in eqs. 3.40 and 3.41.

Given the information that free-radical stability follows the same order as carbocation stability (3° > 2° > 1°), predict the structure of polypropylene produced by the free-radical polymerization of propene. It should help to write out each step in the mechanism, as in eqs. 3.40 and 3.41.