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:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
Quality Level
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
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
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.
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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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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)
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