Polymer chemistry is the study of large molecules called polymers, which are made up of repeating units called monomers. These long chains of molecules can be found in everyday items like plastics, rubber, and even DNA. Understanding how these chains form and behave helps scientists create new materials with specific properties for various applications. In polymer chemistry, researchers explore different methods of polymerization, which is the process of linking monomers together. This can lead to the development of materials that are strong, flexible, or resistant to heat. By manipulating the structure of polymers, scientists can design products that improve our daily lives, from packaging to medical devices.