Product Details

CasNo： 2627-95-4

MF： C8H18OSi2

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

Basic Information

Product Description

Product Name：Divinyltetramethyldisiloxane

CAS No: 2627-95-4

Form: liquid

Product Application

Chain Terminator for Silicone Polymers (Primary Application):

VDT-1 is a key chain terminator​ for synthesizing vinyl-terminated polydimethylsiloxane (Vi-PDMS). Through condensation reactions with hydroxyl-terminated PDMS, or as a chain stopper during synthesis, it can precisely control polymer chain length, yielding PDMS with vinyl groups at both ends, which serves as an important precursor for further functionalization.

Crosslinker for Hydrosilylation Reactions:

VDT-1 can undergo hydrosilylation reactions with hydrogen-containing silicone oil (H-Si)​ in the presence of platinum catalysts to form three-dimensional network structures, used in the preparation of addition-cure liquid silicone rubber (RTV-2). Its dual vinyl structure provides bifunctionality, making crosslinking reactions more efficient and network structures more regular.

Synthesis of Silicone Modifiers:

VDT-1 can act as a coupling agent​ or modifier, grafted onto molecular chains of hydrogen-containing silicone oil, epoxy resins, polyurethanes, acrylates, and other materials through hydrosilylation reactions, achieving chemical bonding​ between silicone and these materials, thereby improving surface properties, flexibility, weather resistance, etc.

Synthesis of Functional Silicone Materials:

The vinyl groups of VDT-1 can react with other functional monomers (e.g., thiol, amino, epoxy groups) to synthesize silicone materials with specific functions, such as biomedical materials, optical materials, electronic packaging materials, etc.

Surface Treatment Agent:

VDT-1 can serve as a surface treatment agent, reacting with active groups on substrate surfaces (e.g., hydroxyl, amino groups) through its vinyl groups to introduce siloxane structures on surfaces, improving substrate hydrophilicity, hydrophobicity, lubricity, stain resistance, etc.

Analytical Chemistry:

VDT-1 can be used as an internal standard​ or reference material​ in analytical methods such as gas chromatography and liquid chromatography for qualitative and quantitative analysis of organosilicon compounds.

Packaging

200kg/drum

Storage

Store in a cool, ventilated warehouse. Keep away from fire and heat. Storage temperature should not exceed 30°C. Packaging must be sealed and protected from air. Store separately from oxidizers, acids, and bases; do not mix. Use explosion-proof lighting and ventilation. Prohibit spark-generating machinery and tools. The storage area should be equipped with spill response equipment and suitable containment materials.