Tetravinyltetramethylcyclotetrasiloxane CAS NO: 2554-06-5 QM-CV4

In the production of addition-cure liquid silicone rubber (LSR) and high-vinyl silicone rubber, tetramethyltetravinylcyclotetrasiloxane serves as an important crosslinking monomer or structure modifier. Due to the presence of four vinyl groups in its molecule, it effectively increases the crosslinking density of the vulcanization system, thereby significantly improving the mechanical strength, tear strength, and abrasion resistance of the silicone rubber. Simultaneously, it improves the transparency and flexibility of the material, making it suitable for high-end applications such as electronic potting, precision mold manufacturing, and medical supplies.

In the preparation of high-vinyl silicone oil and vinyl hydroxyl silicone oil, tetramethyltetravinylcyclotetrasiloxane is used as a modifier or intermediate. Introducing vinyl groups can increase the reactivity of the silicone oil, enabling it to participate in subsequent grafting, crosslinking, and other chemical reactions, thereby preparing modified silicone oil products with special properties.

Besides the above main applications, tetramethyltetravinylcyclotetrasiloxane can also be used to synthesize various specialty organosilicon materials, such as high-temperature resistant resins and organosilicon surfactants. In some formulations, it is also used as an inhibitor or reaction modifier to adjust the vulcanization rate and storage stability of the product.

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