Poly(styrene/butadiene) 85:15 is a thermoplastic elastomer with a styrene-to-butadiene ratio of 85:15, providing a balance between rigidity and flexibility. This copolymer exhibits good impact resistance, processability, and chemical stability.
This styrene-butadiene copolymer is useful for research and formulation work involving rubber and elastomer systems, adhesives, sealants, impact-resistant plastics, and specialty polymer materials.
Key Properties
- Thermoplastic elastomer with styrene-to-butadiene ratio of 85:15
- Useful where a balance of rigidity, flexibility, and impact resistance is required
- CAS Number: 9003-55-8
- Linear formula: [-CH2CH(C6H5)-]x(-CH2CH=CHCH2-)y
- Molecular weight: ~110,000
- Glass transition temperature (Tg): 33-41°C
- Density: 1.05
- Soluble in aromatic and chlorinated hydrocarbons and ketones
Applications
Rubber & Elastomers
Used in research and formulation work involving rubber and elastomer materials, including systems related to tires, seals, and industrial gasket applications.
Adhesives & Sealants
May be used to evaluate adhesion, toughness, and flexibility in adhesive and sealant formulations, including pressure-sensitive adhesive research.
Impact-Resistant Plastics
Useful in studies involving impact-resistant polymer materials where durability, processability, and elastomeric modification are important.
Polymer Research
Suitable for laboratory studies involving styrene-butadiene copolymers, thermoplastic elastomers, polymer compatibility, and specialty materials development.
Solubility & Compatibility
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Soluble in: Aromatic and chlorinated hydrocarbons, ketones
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Polymer type: Styrene-butadiene thermoplastic elastomer
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Formulation use: Applicable to elastomer, adhesive, sealant, and impact-modified polymer systems
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Compatibility: Performance depends on solvent system, resin system, concentration, additives, and processing conditions
Final material behavior should be evaluated under the intended formulation, processing, and application conditions.
Preparation Tips
- Confirm compatibility with the intended solvent, resin, elastomer, or polymer blend before scale-up.
- Use controlled mixing and processing conditions to support uniform incorporation.
- Evaluate adhesion, flexibility, impact resistance, and film or compound performance under target conditions.
- Document solvent, concentration, temperature, mixing, and processing conditions for reproducible results.
Handling & Storage
- Exercise normal care when handling this material.
- Store at room temperature.
- Keep container tightly closed when not in use.
- Use standard laboratory handling practices.
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Frequently Asked Questions
1. What is Poly(styrene/butadiene) 85:15 used for?
Poly(styrene/butadiene) 85:15 is used in research and formulation work involving rubber and elastomers, adhesives, sealants, impact-resistant plastics, and specialty polymer materials.
2. What does the 85:15 ratio mean?
The 85:15 ratio refers to the styrene-to-butadiene composition of the copolymer, which provides a balance between rigidity and flexibility.
3. What is the molecular weight of this product?
The listed molecular weight for this Poly(styrene/butadiene) 85:15 product is approximately 110,000.
4. What solvents is Poly(styrene/butadiene) 85:15 soluble in?
This product is listed as soluble in aromatic and chlorinated hydrocarbons and ketones. Compatibility should be evaluated under the intended formulation conditions.
5. How should this product be stored?
Store at room temperature and keep the container tightly closed when not in use. Exercise normal care and refer to the SDS for complete safety guidance.
Safety & Documentation
Exercise normal care when handling this material. Refer to the Safety Data Sheet (SDS) for hazard information, recommended PPE, and safe handling guidance.
