Crosslinking techniques are methods used to connect polymer chains, enhancing the material's strength, stability, and resistance to heat and chemicals. These techniques can involve physical processes, like heat or radiation, or chemical methods, such as using crosslinking agents. The result is a three-dimensional network that improves the properties of materials like plastics and rubbers. Common applications of crosslinking techniques include the production of thermosetting plastics, elastomers, and hydrogels. These materials are widely used in industries such as automotive, medical, and construction, where durability and performance are crucial. Crosslinking helps ensure that these materials can withstand various environmental conditions.