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Sigma-Aldrich

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

melt index ~21 g/10 min (230°C/5.0kg)

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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

form

pellets

Quality Level

200

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

Related Categories

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.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ramon Tejada-Oliveros et al.
Molecules (Basel, Switzerland), 26(1) (2021-01-21)
This research work reports the potential of maleinized linseed oil (MLO) as biobased compatibilizer in polylactide (PLA) and a thermoplastic elastomer, namely, polystyrene-b-(ethylene-ran-butylene)-b-styrene (SEBS) blends (PLA/SEBS), with improved impact strength for the packaging industry. The effects of MLO are compared

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