This product is a Styrene-Ethylene/Butylene-Styrene (SEBS) block co-polymer. The total Styrene content is 30 percent by weight, so the Ethylene/Butylene content is 70 percent by weight. Unfortunately, the relative amounts of Ethylene and Butylene either by molar ratio or mass ratio are not determined.
200557
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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| Size/SKU | Availability | Price |
|---|---|---|
250 g | Check Cart for Availability | $102.00 |
About This Item
Linear Formula:
[-CH2CH(C6H5)-]W(-CH2CH2-)x[-CH2CH(C2H5)-]y[-CH2CH(C6H5)-]Z
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
$102.00
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form
powder
Quality Segment
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
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.
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This Item | |||
|---|---|---|---|
| description powder, average Mw ~118,000 by GPC, contains >0.03% antioxidant as inhibitor | description analytical standard, 2,500 | description mol wt 65-115 kDa by GPC, powder (Coarse) | description analytical standard, suitable for gel permeation chromatography (GPC), 20,000 |
| viscosity 1,500 cP, 20 % in toluene, Brookfield(lit.) | viscosity - | viscosity 550 cP, 20 % in toluene, Brookfield(lit.) | viscosity - |
| form powder | form powder | form powder (Coarse) | form powder |
| density 0.91 g/mL at 25 °C (lit.) | density - | density 0.91 g/mL at 25 °C (lit.) | density - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| contains >0.03% antioxidant as inhibitor | contains - | contains <1% antioxidant as inhibitor | contains - |
| mol wt average Mw ~118,000 by GPC | mol wt average Mw 2,500 (Typical) | mol wt 65-115 kDa by GPC | mol wt average Mw 20,000 (Typical) |
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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What is the weight percent of butylene (composition) in this co-polymer?
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What is the weight percent of polystyrene (composition) in this co-polymer?
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The weight percent of polystyrene in this co-polymer is approximately 29%.
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How can I determine the shelf life / expiration / retest date of this product?
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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