Polypropylene isotactic
Polypropylene syndiotactic
IUPAC name
Other names
Polypropylene; Polypropene;
Polipropene 25 [USAN]; Propene polymers;
Propylene polymers; 1-Propene
  • none
ECHA InfoCard 100.117.813
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).
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Infobox references

Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, transvaginal mesh [1] and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.

Polypropylene has a relatively slippery "low energy surface" that means that many common glues will not form adequate joints. Joining of polypropylene is often done using welding processes.

In 2013, the global market for polypropylene was about 55 million tonnes. [2] Polypropylene is the world's second-most widely produced synthetic plastic, after polyethylene.


Phillips Petroleum chemists J. Paul Hogan and Robert Banks first polymerized propylene in 1951. [3] Propylene was first polymerized to a crystalline isotactic polymer by Giulio Natta as well as by the German chemist Karl Rehn in March 1954. [4] This pioneering discovery led to large-scale commercial production of isotactic polypropylene by the Italian firm Montecatini from 1957 onwards. [5] Syndiotactic polypropylene was also first synthesized by Natta and his coworkers.

Polypropylene is the second most important plastic with revenues expected to exceed US$145 billion by 2019. The sales of this material are forecast to grow at a rate of 5.8% per year until 2021. [2]

Other Languages
Afrikaans: Polipropileen
беларуская: Поліпрапілен
bosanski: Polipropilen
català: Polipropilè
čeština: Polypropylen
Deutsch: Polypropylen
español: Polipropileno
Esperanto: Polipropileno
euskara: Polipropileno
français: Polypropylène
Bahasa Indonesia: Polipropilena
íslenska: Fjölprópýlen
italiano: Polipropilene
kaszëbsczi: Pòlipropëlen
қазақша: Полипропилен
lietuvių: Polipropilenas
Bahasa Melayu: Polipropilena
Nederlands: Polypropeen
Nordfriisk: Polypropyleen
norsk: Polypropen
polski: Polipropylen
português: Polipropileno
română: Polipropilenă
русский: Полипропилен
Simple English: Polypropylene
slovenčina: Polypropylén
Basa Sunda: Polipropiléné
svenska: Polypropen
татарча/tatarça: Polipropilen
Türkçe: Polipropilen
українська: Поліпропілен
Tiếng Việt: Polypropylen
中文: 聚丙烯