Polymer synthesis is a branch of chemistry focused on creating and designing polymers, which are large molecules made up of repeating subunits called monomers. This field involves the development of methods to chemically link monomers together in order to produce polymers with specific properties and characteristics. Polymer synthesis encompasses a wide range of techniques and processes, including step-growth polymerization, chain-growth polymerization, and ring-opening polymerization. Researchers in this area work to design new polymers for various applications, such as in materials science, drug delivery, and biotechnology.