432431

Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene-graft-maleic anhydride

melt index ~21 g/10 min (230°C/5.0kg)

• Synonym(s): maleated copolymer, maleated polymer, maleic copolymer
• CAS Number: 124578-11-6
• MDL number: MFCD00241501
• UNSPSC Code: 12162002
• PubChem Substance ID: 24867088
• NACRES: NA.23

Properties

• form: pellets
• melt index: ~21 g/10 min (230°C/5.0kg)
• composition: maleic anhydride, ~2 wt. %
• hardness: 75 (Shore A)
• viscosity: 12.5 poise, 15 wt. % in toluene(25 °C, Brookfield)(lit.)
• solubility: solvents with solubility parameters between 7.7 and 9.4: soluble
• density: 0.91 g/mL at 25 °C (lit.)
• elongation: ASTM D 412 - 500% (ultimate)
• SMILES string: C=C.C=CC=C.O=C1OC(=O)C=C1.C=Cc2ccccc2

Description

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

Maleic anhydride is grafted on the mid-block to increase compatibility with polar coatings and increase interaction with substrates. More oxidatively stable than unsaturated precursor. Flexible to -80°C.

Physical form

Thermoplastic elastomer.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H312 + H332,H315,H317,H319,H335
• Precautionary Statements: P261 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves