https://nl.wikipedia.org/w/index.php?title=Poly_Styrene&oldid=50944147, Creative Commons Naamsvermelding/Gelijk delen. Dit deed ze om te benadrukken dat ze niet als seksobject [12] Furthermore, they could obtain styrene by dry-distilling "metastyrol". This hydroperoxide is then used to oxidize propylene to propylene oxide, which is also recovered as a co-product. [13] In 1865, the German chemist Emil Erlenmeyer found that styrene could form a dimer,[14] and in 1866 the French chemist Marcelin Berthelot stated that "metastyrol" was a polymer of styrene (i.e. Thirteen people including a child reportedly died and over 200 people were hospitalized. Marianne Joan Elliott-Said (Kent, 3 juli 1957 - Sussex, 25 april 2011) was een Britse muzikante, tekstschrijver en zangeres, bekend onder het pseudoniem Poly Styrene. [11] They had also determined that Simon's "styrol oxide" – which they renamed "metastyrol" – had the same empirical formula as styrene. I. Weitere Beiträge zur Kenntniß der Fumarsäure und Maleïnsäure" Rudolph Fittig, Camille Petri, Justus Liebigs, unsaturated polyesters used in resins and thermosetting compounds, U.S. Department of Health and Human Services, International Agency for Research on Cancer, National Institute for Occupational Safety and Health, https://www.lexico.com/definition/styrene, "New Process for Producing Styrene Cuts Costs, Saves Energy, and Reduces Greenhouse Gas Emissions", "Determination of styrene in selected foods", "Ueber den flüssigen Storax (Styrax liquidus)", "On styrole, and some of the products of its decomposition", "Ueber das Styrol und einige seiner Zersetzungsproducte", "Ueber Distyrol, ein neues Polymere des Styrols", "Sur les caractères de la benzine et du styrolène, comparés avec ceux des autres carbures d'hydrogène", "Recherches sur l'acide cinnamique et sur le cinnamène", "Studien über die s.g. aromatischen Säuren", "Die Identität von Styrol und Cinnamol, ein neuer Körper aus Styrax", "Material Safety Data Sheet Styrene (monomer) MSDS", "OPPT Chemical Fact Sheets (Styrene) Fact Sheet: Support Document (CAS No. jazzmuziek en een ingetogener zangstijl. This process is being developed by Snamprogetti and Dow. De stof kan gepolymeriseerd worden tot poly(styreenglycol) of als co-monomeer gebruikt worden met andere epoxiden. Styren má narkotické a lokálně dráždivé účinky. [40] In 2012, the Danish EPA concluded that the styrene data do not support a cancer concern for styrene. At 100 °C it will polymerise at a rate of ~2% per hour, and more rapidly than this at higher temperatures. [21] The reaction is highly endothermic and reversible, with a typical yield of 88–94%. It is reported[24] that an approximately 9:1 mixture of styrene and ethylbenzene is obtained, with a total styrene yield of over 60%. Acrylonitril-butadieen-styreen (ABS) is een thermoplast en een copolymeer dat gebruikt wordt voor starre voorwerpen. Styreenoxide is een epoxide afgeleid van styreen, met als brutoformule C 8 H 8 O. Solanine is een organische verbinding behorende tot de stofklasse der glycoalkaloïden.Solanine wordt gevonden in planten die behoren tot de nachtschadefamilie (Solanaceae), zoals de aardappel en de aubergine.Bij onrijpe (groene) tomaten komt het structureel verwante tomatine voor. [25], Another route to styrene involves the reaction of benzene and ethane. Styrene oxide is subsequently hydrolyzed in vivo to styrene glycol by the enzyme epoxide hydrolase. Ze viel op door haar opvallende uiterlijk. [6], U.S. Patent 2776982, "Production of styrene oxide" van 8 januari 1957 aan The Dow Chemical Company, U.S. Patent 5145968, "Selective monoepoxidation of styrene, styrene analogs, and styrene derivatives to the corresponding oxide with molecular oxygen" van 8 september 1992 aan Eastman Kodak Company, U.S. Patent 7345182, "Catalytic epoxidation of styrene with molecular oxygen using metal ion exchanged zeolites" van 18 maart 2008 aan Central Salt and Marine Chemicals Research Institute (India). Vergiftigingsverschijnselen treden bij de mens al op bij een inname van 25 mg tomatine. Styrene is the precursor to polystyrene and several copolymers. The compound evaporates easily and has a sweet smell, although high concentrations have a less pleasant odor. Dit deed ze om te benadrukken dat ze niet als seksobject gezien wilde worden. [45][46], The neurotoxic[47] properties of styrene have also been studied and reported effects include effects on vision[48] (although unable to reproduce in a subsequent study[49]) and on hearing functions. [20][30][31][32] Styrene is largely metabolized into styrene oxide in humans, resulting from oxidation by cytochrome P450. Styrene oxide is considered toxic, mutagenic, and possibly carcinogenic. De tekst is beschikbaar onder de licentie. Het solo - album was een klein succes, maar Poly Styrene trok zich hierna terug uit de muziekwereld. De tekst is beschikbaar onder de licentie. The presence of the vinyl group allows styrene to polymerize. Het harde punkgeluid en haar karakteristieke schelle stem maakten plaats voor rustiger Ethylbenzene is produced via a Friedel–Crafts reaction between benzene and ethylene; originally this used aluminum chloride as a catalyst, but in modern production this has been replaced by zeolites. As such, the two production processes are often highly integrated. 400 mg … Styrene occurs naturally in small quantities in some plants and foods (cinnamon, coffee beans, balsam trees[disambiguation needed] and peanuts)[7] and is also found in coal tar. [44] Various regulatory bodies refer to styrene, in various contexts, as a possible or potential human carcinogen. [43] The National Toxicology Program of the U.S. Department of Health and Human Services has determined that styrene is "reasonably anticipated to be a human carcinogen". The International Agency for Research on Cancer considers styrene to be "probably carcinogenic to humans". [33] The U.S. Environmental Protection Agency (EPA) has described styrene to be "a suspected toxin to the gastrointestinal tract, kidney, and respiratory system, among others". Styrene is "generally found in such low levels in consumer products that risks aren't substantial". met een nieuw album te komen: 'Generation Indigo'. Approximately 25 million tonnes of styrene were produced in 2010,[6] increasing to around 35 million tonnes by 2018. [20], Styrene can be produced from toluene and methanol, which are cheaper raw materials than those in the conventional process. Styrene is also co-produced commercially in a process known as POSM (Lyondell Chemical Company) or SM/PO (Shell) for styrene monomer / propylene oxide. In 1845, French chemist Emil Kopp suggested that the two compounds were identical,[16] and in 1866, Erlenmeyer suggested that both "cinnamol" and styrene might be vinylbenzene. Styreenoxide is een epoxide afgeleid van styreen, met als brutoformule C8H8O. Ze viel op door haar opvallende uiterlijk. Styrene oligomers in polystyrene containers used for food packaging have been found to migrate into the food. Het bestaat uit 5 tot 30% 1,3-butadieen en zo'n 50% styreen, met de rest acrylonitril.Het is eenvoudig te spuitgieten en levert een glad en stevig aanvoelend plastic op. [34][35] On 10 June 2011, the U.S. National Toxicology Program has described styrene as "reasonably anticipated to be a human carcinogen". The remaining 1-phenylethanol is dehydrated to give styrene: Extraction from pyrolysis gasoline is performed on a limited scale. [18] Eventually, in 1876, the Dutch chemist van 't Hoff resolved the ambiguity: the optical activity of the styrene that was obtained by distilling storax resin was due to a contaminant.[19]. De molecule bezit een chiraal centrum, zodat er twee optische isomeren van bestaan, R-styreenoxide en S-styreenoxide. [10] By 1845, the German chemist August Hofmann and his student John Blyth had determined styrene's empirical formula: C8H8. Commercially significant products include polystyrene, ABS, styrene-butadiene (SBR) rubber, styrene-butadiene latex, SIS (styrene-isoprene-styrene), S-EB-S (styrene-ethylene/butylene-styrene), styrene-divinylbenzene (S-DVB), styrene-acrylonitrile resin (SAN), and unsaturated polyesters used in resins and thermosetting compounds. Pas in 1991 werd vastgesteld dat ze een bipolaire gedragsstoornis had. The vast majority of styrene is produced from ethylbenzene,[20] and almost all ethylbenzene produced worldwide is intended for styrene production. Het reactieproduct van styreenoxide met ethanolamine wordt gebruikt in de synthese van tetramisol, een anthelminthicum. Bij verwerken zoals verwarmen, 3D-printen en boren komt een kenmerkende licht onaangename geur vrij. [23] Exelus Inc. claims to have developed this process with commercially viable selectivities, at 400–425 °C and atmospheric pressure, by forcing these components through a proprietary zeolitic catalyst. [failed verification] ABS is amorphous and therefore has no true melting point. In 1839, the German apothecary Eduard Simon isolated a volatile liquid from the resin (called storax or styrax (Latin)) of the American sweetgum tree (Liquidambar styraciflua). Around 80% of styrene is produced by the dehydrogenation of ethylbenzene. Styreenoxide wordt ook gebruikt als reactieve verdunner voor epoxyharsen en als crosslinker van polyester of polyurethaan. The compound evaporates easily and has a sweet smell, although high concentrations have a less pleasant odor. Ze werd opgenomen in het ziekenhuis, waar ze een verkeerde diagnose kreeg. (C 3 H 3 N) z) is a common thermoplastic polymer. Pas in 2004 liet ze weer muzikaal van zich horen met het album 'Flower Aeroplane'. He called the liquid "styrol" (now styrene). The classically described "cherry red skin" rarely occurs. In 1978 begon Poly Styrene hallucinaties te krijgen waardoor ze zich niet goed op de band en haar muziek kon richten.

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