Chemical Cross Linking: This involves the use of chemical agents, such as peroxides or sulfur, to form covalent bonds between polymer chains. Physical Cross Linking: Techniques like UV radiation, gamma radiation, or electron beam can induce cross-linking without the need for chemical agents. Ionic Cross Linking: In this method, ionic interactions between polymers and cross-linking agents create a network structure. Enzymatic Cross Linking: Enzymes can be used to catalyze the formation of cross-links, offering a more biocompatible approach for biomedical applications.
