long-molecule polymer

A polymer is a large molecule made of repeating smaller units called monomers. These macromolecules are formed through a process called polymerization, where monomers chemically bond together. Polymers are fundamental to both nature and industry, forming essential biological materials like proteins and cellulose, as well as synthetic materials such as plastics and rubbers.12

There are two main types of polymerization:
* Addition polymerization: Monomers link together without forming by-products. Examples include the creation of polyethylene from ethylene.23
* Condensation polymerization: Monomers combine, releasing a small molecule like water. Examples include the formation of starch and cellulose from glucose.23

The immense size of polymer molecules gives them unique properties like elasticity and strength, making them suitable for a wide range of applications.4