Polistiréna: Béda antarrépisi
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[[File:Envase de yogur.jpg|thumb| Wadah yogurt tina bahan polistyréné ]]
[[File:Polystyrol-IR.png|thumb|right|160px|Spéktrum transmisi Infrabeureum film polystyrene.]]
'''Polystyrene''' ('''PS''')/IPAc-en|ˌ|p|ɒ|l|i|ˈ|s|t|aɪ|r|iː|n /Polistiréné (PS) mangrupa polimér aromatik sintétik anu dijieun tina ''styrene monomer''. Polistiréné wujudna bisa waé padet atawa busa-na. Sipat umum polistiréné geus jelas saperti teuas, sarta rada regas. Harga tiap kilona kawilang murah. <ref name="acc">{{cite web|title=Common Plastic Resins Used in Packaging|url=http://plastics.americanchemistry.com/Education-Resources/Hands-on-Plastics/Introduction-to-Plastics-Science-Teaching-Resources/History-of-Polymers-Plastics-for-Teachers.html|work=Introduction to Plastics Science Teaching Resources|publisher=American Chemistry Council, Inc.|accessdate=24 December 2012}}</ref> Polistiréné téh aslinamah bisa hérang/transparan, tapi bisa waé maké kelir éta gumantung kabutuhan. Sok dipaké ogé pamungkus luar (seperti mungkus [[kacang]], CD, DVD jeung lain-laina), wadah (saperti "clamshell"), tutup,
<ref>[http://plastics.ulprospector.com/generics/43/polystyrene-ps ulpospector]</ref>
Hanjakalna polistiréné ieu lila pisan ancurna henteu ''biodegrade'' anu matak jadi bahan anu terus disawalakeun, pangpangna lamun ieu barang seug mah dipiceun samarangan ka susukan atawa got
[[file:Plastic-recyc-06.svg|Recycling-Code von Polystyrol]]
==Sajarah==
Polystyrene/polistiréné kapanggih ku
Pausahaan IG Farben mimiti muka pabrik polystyrene di Ludwigshafen, dina taun [[1931]], ieu bakal jadi gaganti [[séng]] dina loba kagunaan. Sukses ieu kahontal nalika tumuwuh wadah réaktor geusan nga extruded polystyrene ngaliwatan tabung/solobong/tube dipanaskeun tuliy dipotongan, ngahasilkeun polystyrene dina bentuk pellet/guruntulan.
Dina taun [[1941]], Dow Chemical
Saméméh taun [[1949]], insinyur kimia saengang Stastny ([[1908]]-[[1985]]) dimekarkeun pre-dilegaan manik PS ku incorporating hidrokarbon alifatik, saperti pentane.
Struktur kristal tina polystyrene isotactic ieu dilaporkeun ku [[Giulio Natta]].<ref>{{cite doi |10.1007/BF02731861}}</ref>
Dina taun 1954, Koppers Company di Pittsburgh, Pennsylvania, mekarkeun (EPS)/busa kalayan ngaran dagang Dylite.<ref>Page 207 of Rigid Plastics Foams 2nd edition by T.H. Ferrigno published in 1967.</ref>
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