Polymer chemistry is a sub-field of chemistry that makes a speciality of the chemical synthesis, shape, chemical and physical houses of polymers and macromolecules. Polymer chemistry is the study of the synthesis, characterization and properties of polymer molecules or macromolecules, which are large molecules composed of repeating chemical subunits known as monomers. They study how the smaller building blocks (monomers) combine, and create useful materials with specific characteristics by manipulating the molecular structure of the monomers/polymers used, the composition of the monomer/polymer combinations, and applying chemical and processing techniques that can, to a large extent, affect the properties of the final product. Polymer chemists are unique within the chemistry community because their understanding of the relationship between structure and property spans from the molecular scale to the macroscopic scale. Polymer chemical professionals create, study, and manipulate the characteristics of polymers to create materials with specific chemical, biological, and physical properties. Polymers permeate every aspect of daily life, and it is difficult to imagine society without synthetic and natural polymers.