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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:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

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

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This Item
427845434450430862
viscosity

12.5 poise, 15 wt. % in toluene(25 °C, Brookfield)(lit.)

viscosity

4.0 poise(190 °C, Brookfield Thermosel)(lit.)

viscosity

200-800 cP(25 °C, Brookfield, spindle #3) (20 rpm)(lit.)

viscosity

-

density

0.91 g/mL at 25 °C (lit.)

density

0.934 g/mL at 25 °C

density

1.04 g/mL at 25 °C (lit.)

density

0.94 g/mL at 25 °C (lit.)

melt index

~21 g/10 min (230°C/5.0kg)

melt index

-

melt index

-

melt index

5 g/10 min (190°C/2.16kg)

composition

maleic anhydride, ~2 wt. %

composition

maleic anhydride, 8-10 wt. %

composition

styrene, 64 wt. % (dry basis)

composition

glycidyl methacrylate, 8 wt. %

hardness

75 (Shore A)

hardness

-

hardness

-

hardness

92 (Shore A, ASTM D 2240)

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

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

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

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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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