441147
Polystyrene
average Mw ~350,000, average Mn ~170,000
Synonym(s):
PS
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About This Item
Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
form
pellets
Quality Level
melt index
2.0-4.0 g/10 min (200°C/5kg)
mol wt
average Mn ~170,000, average Mw ~350,000
impact strength
21 J/m (Izod, ASTM D 256, 23 °C, notched)
impurities
≤5% mineral oil
transition temp
Tg 95 °C
density
1.04 g/mL at 25 °C
elongation
ASTM D 638 - 1.5% (at break)
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
Application
Extrusion molded foamed packaging, dinnerware, bottles and toys. Injection molded packaging containers, toys and disposable cutlery.
Features and Benefits
Hard, clear moderately strong polymer, biologically inert, good dimensional stability. Susceptible to exterior (UV) degradation.
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Storage Class
11 - Combustible Solids
wgk
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Päivi Grönroos et al.
Sensors (Basel, Switzerland), 19(12) (2019-06-30)
Novel hot electron-emitting working electrodes and conventional counter electrodes were created by screen printing. Thus, low-cost disposable electrode chips for bioaffinity assays were produced to replace our older expensive electrode chips manufactured by manufacturing techniques of electronics from silicon or
Dharneedar Ravichandran et al.
Molecules (Basel, Switzerland), 24(22) (2019-11-17)
Polystyrene (PS) polymers have broad applications in protective packaging for food shipping, containers, lids, bottles, trays, tumblers, disposable cutlery and the making of models. Currently, most PS products, such as foams, are not accepted for recycling due to a low
Prasert Akkaramongkolporn et al.
AAPS PharmSciTech, 10(2), 641-648 (2009-05-20)
The differently sulfonated styrene-divinylbenzene cross-linked copolymer cationic exchange resins were prepared by oil-in-water polymerization and varied degrees of sulfonation. Several characteristics of the obtained resins were evaluated, i.e., Fourier transform infrared spectra, the ion-exchange capacity, microscopic morphology, size, and swelling.