200565

Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene

mol wt 65-115 kDa by GPC, powder or chunks

• Linear Formula: [-CH₂CH(C₆H₅)-]_W(-CH₂CH₂-)_x[-CH₂CH(C₂H₅)-]_y[-CH₂CH(C₆H₅)-]_Z
• CAS Number: 66070-58-4
• NACRES: NA.23
• PubChem Substance ID: 24851971
• UNSPSC Code: 12162002
• MDL number: MFCD00134026

Properties

• Quality Segment: 100
• form: powder or chunks
• mol wt: 65-115 kDa by GPC
• contains: <1% antioxidant as inhibitor
• viscosity: 550 cP, 20 % in toluene, Brookfield(lit.)
• density: 0.91 g/mL at 25 °C (lit.)
• SMILES string: C=C.C=CC=C.C=Cc1ccccc1
• InChI: 1S/C8H8.C4H6/c1-2-8-6-4-3-5-7-8;1-3-4-2/h2-7H,1H2;3-4H,1-2H2
• InChI key: MTAZNLWOLGHBHU-UHFFFAOYSA-N

Description

General description

Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene, also known as SEBS polymer, is used as a thermoplastic elastomer. It has good thermal and chemical stability with tunable mechanical properties.

Application

SEBS can be used in the formation of an anion exchange membrane with an energy efficiency of ~ 86% for the fabrication of redox flow batteries. It can also be used to form sulfonated membranes with high water permeability and thermomechanical stability for HVAC applications. SEBS finds its usage as an ion exchange membrane with a capacity of ~1.91 mmol g^-1 for fuel cells.

Safety Information

• Storage Class: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• PPE (personal protective equipment): Eyeshields, Gloves, type N95 (US)