Ozone reduces the useful life of all of the following except?

Ozone is known to interact with and degrade many materials, leading to a reduction in their useful life. Its effects are particularly noticeable on materials that are more susceptible to oxidation.

Rubber, for instance, contains double bonds in its polymer structure that ozone can attack, causing the rubber to crack and become brittle. Textiles, especially those made from natural fibers, can also be adversely affected by ozone, leading to deterioration in their strength and appearance. Dyes, depending on their chemical structure, might also be susceptible to ozone degradation, fading or losing their effectiveness over time when exposed to this oxidizing agent.

Nylon, on the other hand, is a synthetic polymer that is generally more resistant to ozone. Its molecular structure is less prone to the oxidative effects caused by ozone compared to the other materials listed. This resistance is due to the presence of amide groups in the nylon polymer backbone, which do not react as readily with ozone. Consequently, nylon maintains its mechanical properties and appearance when exposed to ozone, allowing it to have a longer useful life in environments where ozone is present.