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441147

Sigma-Aldrich

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:
9003-53-6
MDL number:
MFCD00084450
UNSPSC Code:
12162002
PubChem Substance ID:
24867334
NACRES:
NA.23

form

pellets

Quality Level

100

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)

InChI

1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2

InChI key

PPBRXRYQALVLMV-UHFFFAOYSA-N

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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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP7904
MKCL2307
MKCH9638
MKCB9723
MKBV4969V

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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.
Hui Xia et al.
Journal of colloid and interface science, 376(1), 322-326 (2012-03-27)
The aggregation kinetics of particles in dense polystyrene latex suspensions is studied by low-coherence fiber optic dynamic light scattering. Low-coherence fiber optic dynamic light scattering is used to measure the hydrodynamic radius of the aggregates. The aggregation kinetics data obtained
Harikrishnan Narayanan Unni et al.
Electrophoresis, 30(5), 732-741 (2009-03-05)
This study reports a theoretical and experimental study on the irreversible deposition of colloidal particles from electrokinetic microfluidic flow. The electrokinetic particle transport model presented in this study is based on the stochastic Langevin equation, incorporating the electrical, hydrodynamic, Derjaguin-Landau-Verwey-Overbeek
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