Poly(dimethylsiloxane), hydride terminated
Poly(dimethylsiloxane), hydride terminated (CAS 70900-21-9) is a silicone polymer featuring reactive Si-H end groups. This unique termination allows for crosslinking and functionalization reactions, making it a versatile building block in materials science. With an average molecular weight of approximately 17,500, it exhibits properties typical of silicone fluids, including low surface tension and thermal stability. Its applications span various advanced fields, including bioelectronics and microfluidics, where its specific reactivity is leveraged for creating novel materials and devices.
- Synonyms
- Poly(dimethylsiloxane), hydride terminatedHydride Terminated PDMSPDMS, hydride terminated
Crosslinking Agent
The terminal Si-H groups of this polymer readily participate in hydrosilylation reactions, enabling its use as a crosslinking agent for silicone elastomers and resins. This process is crucial for forming durable, flexible silicone materials with tailored mechanical properties.
Surface Modification
Its hydride termination makes it suitable for modifying surfaces through grafting reactions. This can alter surface energy, hydrophobicity, or introduce specific functionalities for applications in micro/nanoelectronics and self-assembly processes.
Precursor for Functional Materials
Poly(dimethylsiloxane), hydride terminated serves as a precursor for synthesizing a range of functionalized silicone polymers. These derived materials find applications in diverse areas such as coatings, adhesives, and specialized electronic components.
Component in Bioelectronics
This polymer's unique properties and reactivity make it valuable in the development of bioelectronic devices. It can be incorporated into flexible substrates or used to create interfaces for biological sensing and signal transduction.
| Boiling point | 230 °C(lit.) |
|---|---|
| Density | 0.93 g/mL at 25 °C |
| Refractive index | n20/D 1.397 |
| Viscosity | ~500 cSt(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 112 °C / 233.6 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn ~17,500 |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Poly(dimethylsiloxane), hydride terminated used for?
+
Poly(dimethylsiloxane), hydride terminated is primarily used as a crosslinking agent for silicone elastomers, for surface modification in micro/nanoelectronics, and as a precursor for functional silicone materials in areas like bioelectronics and microfluidics.
What is the CAS number and formula for Poly(dimethylsiloxane), hydride terminated?
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The CAS number is 70900-21-9. The chemical formula is not explicitly provided, but it is a polymer structure derived from dimethylsiloxane units with hydride termination.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an average Mn of approximately 17,500. It is supplied as a research or technical grade material, and TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
+
This product carries a Warning signal word with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment such as eyeshields, gloves, and a suitable respirator filter (e.g., ABEK) should be used. Ensure good ventilation (P261) and flush eyes thoroughly if contact occurs (P305 + P351 + P338).
How is Poly(dimethylsiloxane), hydride terminated packed and shipped?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging and adherence to regulations for the safe shipment and export of this chemical.
How can I request a sample or quote for this product?
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To request a sample or obtain a quote for Poly(dimethylsiloxane), hydride terminated, please contact the TSS sales team through our website or directly via phone or email.
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