Entrapment can be achieved through various methods, including:
1. Sol-Gel Process: This involves the formation of a gel that encapsulates the catalyst. The gel is then dried to form a solid matrix. 2. Emulsion Polymerization: Here, the catalyst is dispersed in a monomer solution, which is then polymerized to form a solid matrix. 3. In Situ Polymerization: The catalyst is mixed with a monomer, and polymerization is initiated to form the matrix around the catalyst.
