A block copolymer is a type of polymer made from two or more distinct polymer segments, known as blocks. These blocks are chemically different and can exhibit unique properties, allowing for a wide range of applications. Block copolymers can be designed to have specific characteristics, such as flexibility, strength, or thermal stability, depending on the combination of the blocks used. These materials are often used in various industries, including plastics, rubber, and biomedical applications. Their ability to self-assemble into organized structures makes them valuable for creating nanomaterials and improving the performance of products like adhesives and coatings.