Buy polymers · Styrenics & copolymers
Buy Polystyrene.
Find catalog suppliers and compare buying options for Polystyrene. Use the material details below to match the right grade, molecular-weight range, and pack size.
PSpolystyrolCAS 9003-53-6
21 listed priceslisted on this page
4 supplierssupplier pages
Grade · Molecular weight · Formkey buying fields
Buying overview
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A foundational research polymer available across general-purpose, molecular-weight, bead, and analytical contexts.
MaterialPolystyrene
Common short name: PS
Catalog searchpolystyrene
Use the name and aliases to widen your supplier search.
Compare byGrade · Molecular weight · Form
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Supplier listings
Compare Polystyrene prices.
The table brings different pack sizes and catalog contexts together. Price per gram is a useful first pass, but it is not a substitute for matching grade and molecular-weight range.
21 listingsListed prices before shipping and tax · confirm the current product page before ordering
| Supplier / catalog | Specification | Pack | Listed price | Normalized price | Availability |
|---|---|---|---|---|---|
SA Sigma-Aldrich430102-3KG |
Average Mw ~192,000Beads or pellets | 3 kg | USD $157.00 | $0.05 / g | Estimated ship date shownChecked 2026-09-02 |
SA Sigma-Aldrich430102-1KG |
Average Mw ~192,000Beads or pellets · web-only promotion | 1 kg | USD $66.13 | $0.07 / g | Check cart for availabilityChecked 2026-09-02 |
SC SciPoly845 |
PolystyreneSciPoly product page · public variation price | 500 g | USD $45.00 | $0.09 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly844 |
PolystyreneSciPoly product page · public variation price | 500 g | USD $45.00 | $0.09 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly400 |
PolystyreneSciPoly product page · public variation price | 500 g | USD $45.00 | $0.09 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly1024 |
PolystyreneSciPoly product page · public variation price | 500 g | USD $45.00 | $0.09 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly039A |
PolystyreneSciPoly product page · public variation price | 500 g | USD $45.00 | $0.09 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly845 |
PolystyreneSciPoly product page · public variation price | 250 g | USD $28.00 | $0.11 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly844 |
PolystyreneSciPoly product page · public variation price | 250 g | USD $28.00 | $0.11 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly400 |
PolystyreneSciPoly product page · public variation price | 250 g | USD $28.00 | $0.11 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly1024 |
PolystyreneSciPoly product page · public variation price | 250 g | USD $28.00 | $0.11 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly039A |
PolystyreneSciPoly product page · public variation price | 250 g | USD $28.00 | $0.11 / g | Listed price · verify current pageChecked 2026-09-04 |
SA Sigma-Aldrich182427-1KG |
Average Mw ~280,000 by GPCBeads or pellets · web-only promotion | 1 kg | USD $197.25 | $0.20 / g | Available to ship todayChecked 2026-09-02 |
SA Sigma-Aldrich182427-500G |
Average Mw ~280,000 by GPCBeads or pellets | 500 g | USD $157.00 | $0.31 / g | Available to ship todayChecked 2026-09-02 |
V/ VWR / AvantorBP0000479271 / 07228-1KG |
Polystyrene resin · white beadsGeneral-purpose resin · availability requires sign-in | 1 kg | USD $1,152.43 | $1.15 / g | Log in for availabilityChecked 2026-09-02 |
V/ VWR / AvantorBP0000479271 / 07228-100G |
Polystyrene resin · white beadsGeneral-purpose resin · availability requires sign-in | 100 g | USD $193.97 | $1.94 / g | Log in for availabilityChecked 2026-09-02 |
SA Sigma-Aldrich182427-25G |
Average Mw ~280,000 by GPCBeads or pellets · web-only promotion | 25 g | USD $56.95 | $2.28 / g | Available to ship todayChecked 2026-09-02 |
SC SciPoly589 |
Polystyrene, 90% isotacticSciPoly product page · public variation price | 5 g | USD $84.00 | $16.80 / g | Listed price · verify current pageChecked 2026-09-04 |
SC SciPoly589 |
Polystyrene, 90% isotacticSciPoly product page · public variation price | 1 g | USD $21.00 | $21.00 / g | Listed price · verify current pageChecked 2026-09-04 |
SA Sigma-Aldrich450383-1G |
Average Mw ~400,000 by GPCPowder · GPC grade | 1 g | USD $160.50 | $160.50 / g | Contact supplier for availabilityChecked 2026-09-02 |
PO Polysciences00867-250 |
MW ~100,000 · low PDI ~1.06Analytical standard · research grade | 250 mg | USD $300.47 | $1,201.88 / g | Add to cartChecked 2026-09-02 |
Supplier catalogs
Open the catalogs behind the comparison.
These links lead to current supplier search pages so you can review additional grades, pack sizes, and availability beyond the checked rows above.
SciPoly catalog checked 2026-09-04: 6 matching product pages reviewed and 12 public pack prices captured.
Scientific Polymer Products (SciPoly)845
Polystyrene · 2 public pack prices · USD 28.00–45.00
Price checked on product page
Scientific Polymer Products (SciPoly)844
Polystyrene · 2 public pack prices · USD 28.00–45.00
Price checked on product page
Scientific Polymer Products (SciPoly)400
Polystyrene · 2 public pack prices · USD 28.00–45.00
Price checked on product page
Scientific Polymer Products (SciPoly)1024
Polystyrene · 2 public pack prices · USD 28.00–45.00
Price checked on product page
About this marketplace page. Prices and stock can change by seller, region, account, and date. Confirm the supplier page, technical documents, shipping terms, and final price before ordering.
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