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/449/386/product-dating-information-mk.pdf
182427
Polystyrene
average Mw ~280,000 by GPC
Sinónimos:
PS
About This Item
Productos recomendados
Formulario
beads or pellets
mol peso
average Mw ~280,000 by GPC
índice de refracción
n20/D 1.5916
temperatura de transición
Tg 100 °C
densidad
1.047 g/mL at 25 °C
cadena SMILES
c1(ccccc1)C=C
InChI
1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
Clave InChI
PPBRXRYQALVLMV-UHFFFAOYSA-N
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Descripción general
Aplicación
Polystyrene can be used as a precursor to prepare graphene film and 3D graphene sponges by pyrolysis under argon atmosphere. The filmogenic property of polystyrene can be exploited to prepare 3D graphene sponges with uniform pore sizes.
It can also be used to prepare dyed polystyrene (PS) film for routine dosimetry in radiation processing. Dyed PS film has high post-irradiation stability.
Código de clase de almacenamiento
11 - Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Equipo de protección personal
Eyeshields, Gloves, type N95 (US)
Elija entre una de las versiones más recientes:
Certificados de análisis (COA)
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Los clientes también vieron
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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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
Helpful?
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What is the tacticity of this PS? Is it atactic?
1 answer-
This product is atactic.
Helpful?
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Hello, I'd like to know how these polystyrene samples are typically synthesized? (Free radical polymerization? Anionic living polymerization?) Thanks, Stanley
1 answer-
Unfortunately, the method of polymerization is considered proprietary.
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