Polypropylene
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.
| Names | |
|---|---|
| IUPAC name
Poly(1-methylethylene) | |
| Other names
Polypropylene; Polypropene; Polipropene 25 [USAN]; Propene polymers; Propylene polymers; 1-Propene; [-Ch2-Ch(Ch3)-]n | |
| Identifiers | |
| ChemSpider |
|
| ECHA InfoCard | 100.117.813 |
| UNII | |
CompTox Dashboard (EPA) |
|
| Properties | |
| (C3H6)n | |
| Density | 0.855 g/cm3, amorphous 0.946 g/cm3, crystalline |
| Melting point | 130 to 171 °C (266 to 340 °F; 403 to 444 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat-resistant. It is a white, mechanically rugged material and has a high chemical resistance.
Bio-PP is the bio-based counterpart of polypropylene (PP).
Polypropylene is the second-most widely produced commodity plastic (after polyethylene).
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