432490
Polystyrene-block-polybutadiene
30 wt.% styrene
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About This Item
Linear Formula:
[CH2CH(C6H5)]x (CH2CH=CHCH2)y [CH2CH(C6H5)]x
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
form
beads
melt index
10 g/10 min (200°C/5.0kg)
contains
phenolic as antioxidant
hardness
61 (Shore A)
viscosity
8.5 poise, 25 wt. % in toluene(25 °C, Brookfield)(lit.)
solubility
solvents with solubility parameters between 7.7 and 9.4: soluble
elongation
ASTM D 412 - 600% (ultimate)
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.
Features and Benefits
High strength and low viscosity for easy melt and solution processing. High temperature degradation results in cross-linking. Flexible to -65°C. Excellent electrical insulator. Resists acids and alkali.
Physical form
Thermoplastic elastomer.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Sneha B Chakrapani et al.
The Analyst, 144(5), 1679-1686 (2019-01-19)
The accurate characterization of relative composition in multicomponent polymer systems such as statistical copolymers, block copolymers, and polymer blends is critical to understanding and predicting their behavior. Typically, polymer compositional analysis is performed using 1H Nuclear Magnetic Resonance (NMR) Spectroscopy
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