This product is a thermoplastic amorphous polymer, indicating that it is linear.
430102
Polystyrene
average Mw ~192,000
Synonym(s):
PS
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| Size/SKU | Availability | Price |
|---|---|---|
1 kg | Available to ship TODAY | $77.80 $81.70 |
3 kg | Available to ship TODAY | $157.00 |
About This Item
Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
$81.70
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form
beads or pellets
Quality Segment
melt index
6.0-9.0 g/10 min (200°C/5kg)
mol wt
average Mw ~192,000
feature
hydrophobic
refractive index
n20/D 1.59
transition temp
softening point 107 °C (Vicat, ASTM D 1525)
SMILES string
c1(ccccc1)C=C
InChI
1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
InChI key
PPBRXRYQALVLMV-UHFFFAOYSA-N
General description
Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation.
Application
Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery.
Features and Benefits
- Medium molecular weight (~192,000 Mw) balancing excellent mechanical strength and processability, making it suitable for varied applications.
- Beads or pellets form allows for easy handling, processing, and uniform melting in manufacturing processes.
- Melt index of 6.0–9.0 g/10 min (200°C/5kg) provides good flow characteristics, enabling efficient molding and extrusion.
Physical form
Thermoplastic amorphous polymer.
1 of 1
This Item | |||
|---|---|---|---|
| description average Mw ~192,000 | description average Mw ~400,000 by GPC | description average Mw ~350,000, average Mn ~170,000 | description average Mw ~250,000 by GPC |
| refractive index n20/D 1.59 | refractive index - | refractive index - | refractive index n20/D 1.5916 |
| form beads or pellets | form powder | form pellets | form beads or pellets |
| transition temp softening point 107 °C (Vicat, ASTM D 1525) | transition temp - | transition temp Tg 95 °C | transition temp Tg 100 °C |
| melt index 6.0-9.0 g/10 min (200°C/5kg) | melt index - | melt index 2.0-4.0 g/10 min (200°C/5kg) | melt index - |
| mol wt average Mw ~192,000 | mol wt average Mw ~400,000 by GPC | mol wt average Mw ~350,000, average Mn ~170,000 | mol wt average Mw ~280,000 by GPC |
| feature hydrophobic | feature hydrophobic | feature hydrophobic | feature hydrophobic |
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Storage Class
11 - Combustible Solids
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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Is Polystyrene (Mw 192,000 #430102) linear or crosslinked? Thanks
1 answer-
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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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please tell me the approximate size of this polystyrene.
1 answer-
This material may be in granular or pellet form. Unfortunately, the particle size has not been determined.
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