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432490

Sigma-Aldrich

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:
308076-12-2
MDL number:
MFCD00010045
UNSPSC Code:
12162002
PubChem Substance ID:
24867091
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

100

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCF0088
MKCD5535
MKCC2430
MKBQ0526V
MKBL8930V

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Sigma-Aldrich

180912

Poly(acrylonitrile-co-butadiene)

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

Questions

  1. Can I know the average molecular weight information of the polymer?

    1 answer

    1. The molecular weight is approximately 153-185 kda.

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