Editing Styrene-butadiene (section)

{{short description|Synthetic rubber polymer}}
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'''Styrene-butadiene''' or '''styrene-butadiene rubber''' ('''SBR''') describe families of [[synthetic rubber]]s derived from [[styrene]] and [[butadiene]] (the version developed by [[Goodyear Tire and Rubber Company|Goodyear]] is called '''Neolite'''<ref name="Pilla2004">{{citation|author=Steven Di Pilla|title=Slip and Fall Prevention: A Practical Handbook|url=https://books.google.com/books?id=z7SPAGW1nRcC&pg=PA82|date=2 June 2004|publisher=CRC|isbn=978-0-203-49672-5|page=82}}</ref>). These materials have good [[Wear#Abrasive wear|abrasion]] resistance and good aging stability when protected by additives.  In 2012, more than 5.4 million tonnes of SBR were processed worldwide.<ref>Market Study Synthetic Rubber {{cite web |url=http://www.ceresana.com/de/marktstudien/kunststoffe/synthetischer-gummi/ |title=Marktstudie Synthetische Elastomere von Ceresana |access-date=2013-08-23  |archive-url=https://web.archive.org/web/20150318064805/http://www.ceresana.com/de/marktstudien/kunststoffe/synthetischer-gummi/ |archive-date=2015-03-18 }}, published by Ceresana, June 2013</ref> About 50% of car [[tires]] are made from various types of SBR.  The styrene/butadiene ratio influences the properties of the polymer: with high styrene content, the rubbers are harder and less rubbery.<ref name=Ullmann>{{Ullmann|author=Werner Obrecht |author2=Jean-Pierre Lambert |author3=Michael Happ |author4=Christiane Oppenheimer-Stix |author5=John Dunn |author6=Ralf Krüger |title=Rubber, 4. Emulsion Rubber|year=2012|doi=10.1002/14356007.o23_o01}}</ref> SBR is not to be confused with the [[thermoplastic elastomer]], styrene-butadiene [[block copolymer]], although being derived from the same monomers.