Poly(dimethylsiloxane), bis(hydroxyalkyl) terminated
Poly(dimethylsiloxane), bis(hydroxyalkyl) terminated (CAS 156327-07-0) is a silicone polymer featuring hydroxyl end groups, with an average molecular weight of approximately 5,600 g/mol. This PDMS variant functions as a reactive resin modifier, a paint additive, and a mold release agent. Its consistent properties, including a refractive index of 1.409 and a density of 0.98 g/mL, make it suitable for various material science and micro/nanoelectronic applications.
- IUPAC
- PDMS
- Synonyms
- Hydroxy (OH) Terminated PDMSPDMSPDMS Elastomers/ResinsPDMS and Silicone PolymersPolysiloxanesSilicones

Reactive Resin Modifier
Incorporated into resin systems to alter properties, enhancing flexibility and durability. Its hydroxyl functionality allows for chemical bonding within the polymer matrix.
Paint and Coating Additive
Used to improve surface characteristics of paints and coatings, such as flow, levelling, and scratch resistance. Enhances overall finish and performance.
Mold Release Agent
Facilitates the easy removal of molded parts from their molds. Its low surface tension and non-stick properties are ideal for complex mold designs.
Material Science Component
A versatile building block for advanced materials, particularly in applications requiring elastomeric properties and controlled surface interactions. Useful in microfluidics and bioelectronics.
| Density | 0.98 g/mL at 25 °C(lit.) |
|---|---|
| Refractive index | n20/D 1.409(lit.) |
| Viscosity | 100 cP(25 °C)(lit.) |
| Application | Reactive resin modifier, paint additive and mold release agent. |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn ~5,600 |
|---|---|
| Hydroxyl Value | 20 mg KOH/g |
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), bis(hydroxyalkyl) terminated used for?
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This PDMS compound is used as a reactive resin modifier, a paint additive, and a mold release agent, finding applications in material science, micro/nanoelectronics, and microfluidics.
What is the CAS number and formula for this product?
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The CAS number is 156327-07-0. The chemical formula is not provided in the data, but it is a polysiloxane chain terminated with hydroxyalkyl groups.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Poly(dimethylsiloxane), bis(hydroxyalkyl) terminated with an average Mn of ~5,600. The specific purity assay is not detailed, and it is not represented as USP, BP, EP, or other pharmacopoeia grades. It is supplied for technical and research purposes.
What are the safety and handling considerations?
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This product has a WGK Germany rating of 3, indicating it is hazardous to water. Recommended personal protective equipment includes eyeshields and gloves to prevent contact.
How is this product packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Specific packing and shipping details are confirmed upon order, adhering to international regulations for chemical transport.
How can I request a sample or a quote?
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To request a sample or a quote for Poly(dimethylsiloxane), bis(hydroxyalkyl) terminated, please contact our sales team through the website or by phone.
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