Polystyrene-block-polyisoprene-block-polystyrene
Polystyrene-block-polyisoprene-block-polystyrene (CAS: 25038-32-8) is a triblock copolymer with the linear formula [CH2CH(C6H5)]x[CH2CH=C(CH3)CH2]y[CH2CH(C6H5)]z. It finds application as a modifier for polymers and in hot melt adhesives, sealants, and asphalt gels. This material is also used in the direct molding or extrusion of auto parts, sporting goods, footwear, and films.
- IUPAC
- Polystyrene-block-polyisoprene, multi-arm
![Polystyrene-block-polyisoprene-block-polystyrene ([CH2CH(C6H5)]X[CH2CH=C(CH3)CH2]Y[CH2CH(C6H5)]z) — chemical structure, CAS 25038-32-8; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F25038-32-8.png&w=3840&q=75)
Adhesives and Sealants
Utilised as a key component in hot melt adhesives, sealants, and asphalt gels due to its unique block copolymer structure, providing excellent cohesive and adhesive properties.
Polymer Modification
Acts as a modifier for various polymers, thermosets, and rubber compounding, enhancing properties such as impact resistance and flexibility.
Molded and Extruded Goods
Suitable for direct molding or extrusion processes to produce automotive parts, sporting goods, footwear components, and films requiring specific material characteristics.
| Linear formula | [CH2CH(C6H5)]X[CH2CH=C(CH3)CH2]Y[CH2CH(C6H5)]z |
|---|---|
| Density | 0.93 g/mL at 25 °C |
| Solubility | solvents with solubility parameters between 7.7 and 9.4: soluble |
| Viscosity | 12 poise, 25 wt. % in toluene(25 °C, Brookfield)(lit.) |
| Contains / stabiliser | phenolic as antioxidant |
| Application | Component of hot melt adhesives, sealants, asphalt and oil gels. Modifier for polymers, thermosets and general rubber compounding. Direct molded or extruded auto parts, sporting goods, footware and film. |
| Composition | styrene, 22 wt. % |
| Hardness | 52 (Shore A) |
|---|
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 Polystyrene-block-polyisoprene-block-polystyrene used for?
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It is used as a component in hot melt adhesives, sealants, and asphalt gels, and as a modifier for polymers, thermosets, and rubber compounding. It is also used in direct molded or extruded auto parts, sporting goods, footwear, and films.
What is the CAS number and formula for Polystyrene-block-polyisoprene-block-polystyrene?
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The CAS number is 25038-32-8, and the linear formula is [CH2CH(C6H5)]x[CH2CH=C(CH3)CH2]y[CH2CH(C6H5)]z.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material with a composition of 22 wt.% styrene. The specific purity and grade are not specified as pharmacopoeia grade (USP, BP, EP). We recommend contacting our sales team for detailed specifications.
What are the safety and handling precautions?
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This substance is classified under WGK (Germany) as 3, indicating it is hazardous to water. Handle with appropriate personal protective equipment in a well-ventilated area. Consult the Safety Data Sheet (SDS) for comprehensive safety information.
How is Polystyrene-block-polyisoprene-block-polystyrene packed, shipped, and exported?
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Tech Serve Solutions exports fine chemicals globally, adhering to international shipping regulations. Packaging details can be provided upon request, tailored to the specific order and destination.
How can I request a sample or quote?
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To request a sample or a quote for Polystyrene-block-polyisoprene-block-polystyrene, please contact our dedicated sales team via our website or direct email.
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