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200557

Sigma-Aldrich

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

powder, average Mw ~118,000 by GPC, contains >0.03% antioxidant as inhibitor

Synonym(s):

SEBS

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About This Item

Linear Formula:
[-CH2CH(C6H5)-]W(-CH2CH2-)x[-CH2CH(C2H5)-]y[-CH2CH(C6H5)-]Z
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

form

powder

Quality Level

mol wt

average Mw ~118,000 by GPC

contains

>0.03% antioxidant as inhibitor

viscosity

1,500 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

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General description

Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene(SEBS) is a thermoplastic triblock copolymer with excellent mechanical, chemical, and thermal stability. It is a phase-segregated material and can be functionalized for further applications.

Application

Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene can be used:
  • As a precursor to synthesize anion exchange membranes for alkaline fuel cells.
  • To prepare super tough ternary polymer blends such as PS/LDPE/SEBS/xGnP ternary composites.
  • To synthesize biocompatible conductive polymers. For example, PEDOT: PSSpolymer thin films for stretchable electrodes.

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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