What is a polymer?

A polymer is a large molecule that is formed by the bonding of many smaller units called monomers. These monomers connect through chemical reactions in a process known as polymerization. Each repeating unit contributes to the physical and chemical properties of the resulting polymer, which can vary widely.

Polymers are found in a range of materials, from natural substances like proteins and cellulose to synthetic products such as plastics. The chain-like structure of polymers allows for diverse functionalities, making them crucial in various applications, including packaging, textiles, and even biological systems.

Understanding that polymers consist of repeating units helps clarify their characteristics and behaviors in different contexts, particularly in chemistry and materials science.