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 TODAYfromMILWAUKEE | $77.80 $66.13 |
3 kg | Estimated to ship onAugust 24, 2026fromMILWAUKEE | $157.00 |
About This Item
Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
$66.13
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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
n
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.
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This Item | |||
|---|---|---|---|
| description average Mw ~192,000 | description average Mw ~280,000 by GPC | description analytical standard, suitable for gel permeation chromatography (GPC), 900,000 | description analytical standard, suitable for gel permeation chromatography (GPC), 400,000 |
| refractive index n | refractive index n | refractive index - | refractive index - |
| form beads or pellets | form beads or pellets | form fibers | form powder |
| mol wt average Mw ~192,000 | mol wt average Mw ~280,000 by GPC | mol wt average Mw 900,000 (Typical) | mol wt average Mw 400,000 (Typical) |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| transition temp softening point 107 °C (Vicat, ASTM D 1525) | transition temp Tg 100 °C | transition temp - | transition temp - |
| melt index 6.0-9.0 g/10 min (200°C/5kg) | melt index - | melt index - | melt index - |
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Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
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?
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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?
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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.
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This material may be in granular or pellet form. Unfortunately, the particle size has not been determined.
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