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432490

Sigma-Aldrich

Polystyrene-block-polybutadiene

30 wt.% styrene

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250 G
58.00 CHF
1 KG
97.90 CHF

58.00 CHF

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250 G
58.00 CHF
1 KG
97.90 CHF

About This Item

Formule linéaire :
[CH2CH(C6H5)]x (CH2CH=CHCH2)y [CH2CH(C6H5)]x
Numéro CAS:
308076-12-2
Numéro MDL:
MFCD00010045
Code UNSPSC :
12162002
ID de substance PubChem :
24867091
Nomenclature NACRES :
NA.23

58.00 CHF

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Devis pour commande en gros

Forme

beads

Indice de fusion

10 g/10 min (200°C/5.0kg)

Contient

phenolic as antioxidant

Dureté

61 (Shore A)

Viscosité

8.5 poise, 25 wt. % in toluene(25 °C, Brookfield)(lit.)

Solubilité

solvents with solubility parameters between 7.7 and 9.4: soluble

Élongation

ASTM D 412 - 600% (ultimate)

Catégories apparentées

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.

Caractéristiques et avantages

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.

Forme physique

Thermoplastic elastomer.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCF0088
MKCD5535
MKCC2430
MKBQ0526V
MKBL8930V

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Poly(acrylonitrile-co-butadiene) acrylonitrile 37-39 wt. %

Sigma-Aldrich

180912

Poly(acrylonitrile-co-butadiene)

Sneha B Chakrapani et al.
The Analyst, 144(5), 1679-1686 (2019-01-19)
The accurate characterization of relative composition in multicomponent polymer systems such as statistical copolymers, block copolymers, and polymer blends is critical to understanding and predicting their behavior. Typically, polymer compositional analysis is performed using 1H Nuclear Magnetic Resonance (NMR) Spectroscopy

Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

      Helpful?

  3. Can I know the average molecular weight information of the polymer?

    1 answer

    1. The molecular weight is approximately 153-185 kda.

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