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427861

Sigma-Aldrich

Polypropylene

Isotactic, average Mw ~340,000, average Mn ~97,000

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Linear Formula:
[CH2CH(CH3)]n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

Quality Level

form

beads

melt index

4 g/10 min (230°C/2.16kg)

mol wt

average Mn ~97,000
average Mw ~340,000

hardness

99 (Rockwell R, ASTM D 785-A)

transition temp

Tm 160-165 °C

density

0.9 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

CC=C

InChI

1S/C22H42O3/c1-2-3-4-5-11-14-17-20-21(25-20)18-15-12-9-7-6-8-10-13-16-19-22(23)24/h20-21H,2-19H2,1H3,(H,23,24)/t20-,21+/m1/s1

InChI key

NSYDMBURIUSUDH-RTWAWAEBSA-N

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Application

Used with ram- and screw-injection machines. For automotive, housewares, general molding products and multi- and monofiliment fiber.

Features and Benefits

High stiffness and resistance to solvents and chemicals. Resistant to environmental stress cracking. More prone to oxidation than polyethylene.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Valerie Stock et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 135, 111010-111010 (2019-12-04)
Current analyses show a widespread occurrence of microplastic particles in food products and raise the question of potential risks to human health. Plastic particles are widely considered to be inert due to their low chemical reactivity and therefore supposed to
Simon J Gallagher et al.
Journal of drug targeting, 11(6), 373-379 (2003-12-12)
The aim of this study was to test the hypothesis that the most appropriate model for studying the diffusional release of an active from a topical formulation is one in which the membrane offers minimal resistance to release and involves
G Imanidis et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 47(3), 283-287 (1999-06-26)
The possibility to control the release rate of salbutamol through the hydrophobic Celgard 2500 polypropylene membrane by varying the composition and the viscosity of hydrophilic drug vehicles was investigated. The use of the polypropylene membrane as a control membrane for
F Cassiola et al.
Artificial organs, 24(3), 168-173 (2000-04-12)
The introduction of microporous polypropylene hollow fibers in recent years has brought considerable advances to blood oxygenators. However, lifetime and assembly problems are still unresolved. In this work we tried to rate the oxygen permeation velocity by turning the fibers
[Procedure for membrane oxygenation of blood over hydrophilic polymer membranes].
H Körber et al.
Biomedizinische Technik. Biomedical engineering, 43 Suppl, 338-340 (1998-12-22)

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