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Merck
CN

427888

Polypropylene

Isotactic, average Mw ~250,000, average Mn ~67,000

Synonym(s):

PP, polypropene

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About This Item

Linear Formula:
[CH2CH(CH3)]n
CAS Number:
9003-07-0
NACRES:
NA.23
PubChem Substance ID:
24866786
UNSPSC Code:
12162002
MDL number:
MFCD00084447

Key Documents

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Product Name

Polypropylene, Isotactic, average Mw ~250,000, average Mn ~67,000

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

SMILES string

CC=C

InChI key

NSYDMBURIUSUDH-RTWAWAEBSA-N

form

beads

melt index

12 g/10 min (230°C/2.16kg)

mol wt

average Mn ~67,000
average Mw ~250,000

hardness

100 (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

Quality Level

100

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Related Categories

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.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX7451
MKCV6414
MKCV0260
MKCM5650
MKCQ4297

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R Yan et al.
Food microbiology, 87, 103354-103354 (2020-01-18)
Viruses are transmissible via their interaction with contact surfaces of food containers or tools. This study evaluated the recoveries of MS2 coliphage, a virus surrogate, from polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE), and glass (borosilicate and soda lime), as
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
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
[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)
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
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