The preparation of vinyl silicone rubber typically involves a series of complex chemical reactions. These reactions aim to copolymerize vinyl silicone monomers with siloxanes to form high-molecular-weight polymers. The following are the main steps in the preparation of vinyl silicone rubber:

1. Monomer Selection and Synthesis: Firstly, appropriate vinyl silicone monomers and siloxanes are selected as raw materials. These monomers are usually obtained through specific chemical synthesis methods, such as the Grignard reaction or other synthetic pathways.

2. Hydrolysis and Condensation Polymerization: During the preparation process, the monomers undergo hydrolysis and condensation polymerization reactions. These reactions occur under specific catalysts and conditions to form high-molecular-weight polysiloxane chains.

3. Cyclization Reaction: Some polysiloxane chains will further cyclize into cyclic compounds, which play a key role in subsequent steps.

4. Ring-Opening Polymerization: Under the action of a catalyst, the cyclic compounds undergo ring-opening polymerization to form high-molecular-weight cluster-type polymers, known as vinyl silicone rubber.

5. Post-treatment: After preparation, a series of post-treatment steps, such as washing, drying, and vulcanization, are required to obtain the final vinyl silicone rubber product.

Side Chain Type Vinyl silicone oil, plz check MY272