432407

Polystyrene-block-polyisoprene-block-polystyrene

styrene 17 wt. %

• Synonym(s): Polystyrene-block-polyisoprene, multi-arm
• Linear Formula: [CH₂CH(C₆H₅)]_X[CH₂CH=C(CH₃)CH₂]_Y[CH₂CH(C₆H₅)]_z
• CAS Number: 25038-32-8
• MDL number: MFCD00217755
• UNSPSC Code: 12162002
• PubChem Substance ID: 24867086
• NACRES: NA.23

Properties

• form: beads
• melt index: 106 g/10 min (200°C/5.0kg)
• mol wt: M_n 1,900
• contains: phenolic as antioxidant
• composition: styrene, 17 wt. %
• hardness: 32 (Shore A)
• viscosity: 5 poise, 25 wt. % in toluene(25 °C, Brookfield)(lit.)
• solubility: solvents with solubility parameters between 7.7 and 9.4: soluble
• density: 0.92 g/mL at 25 °C
• elongation: ASTM D 412 - 1,300% (ultimate)
• SMILES string: CC(=C)C=C.C=Cc1ccccc1
• InChI: 1S/C8H8.C5H8/c1-2-8-6-4-3-5-7-8;1-4-5(2)3/h2-7H,1H2;4H,1-2H2,3H3
• InChI key: ROGIWVXWXZRRMZ-UHFFFAOYSA-N

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

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.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable