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Self-assessmentxi

  1. Translatethearticleusingadictionary. Greenertyres Usingbiomassandbugstocreatesyntheticrubber

Oildoesnotjustprovidethefuelthatpowerstheinternal-combustionenginesincars.Itsby-productsarealsothebasisofmanyofthematerials,suchasplastics,fromwhichcarsaremade.Oneofthesepetroleumby-productsisisoprene.Thisisusedtomakethesyntheticrubberincartyres.Aboutabilliontyresaremadeeveryyear-eachonerequiringabout26litresofoil.Nowawayhasbeenfoundtomakegreenertyresbyusinggeneticallymodifiedbugstoproduceisoprenebiologically.

TheworkisbeingcarriedoutbyGenencor,anindustrialbiotechcompanybasedinCalifornia,incollaborationwithGoodyear,oneoftheworld’sbiggesttyremakers.InthelaboratoryGenencorhasproducedenoughofwhatitcallsBioIsopreneforGoodyeartobuildandsuccessfullytestprototypetyresmadewith

thenewmaterial.Genencorisnowcompletingadedicatedpilotfactorywhichwillbeusedtodevelopamass-productionprocess,whichcouldbeoperatingcommerciallyaround2015.

Isopreneisamonomer,whichisasubstancewhosemoleculescanbelinkedtogetherchemicallytoformapolymer.Latex,amaterialobtainedfromrubbertrees,isanaturalpolymerofisoprene.Isoprenecanalsobeartificiallypolymerisedtomakesyntheticrubber.Tyresaremadeofacombinationofnaturalandsyntheticrubbertoprovidethegripandendurancerequiredbycarmakers.Typicallyaroundaquarterofeachtyreismadefromisoprenederivedfrompetrochemicals,andabout60%ofworldwideisopreneproductionisusedbytyremakers.Therestgoesintomakingotherproducts,includingglues,disposablenappiesandsurgicalgloves.

GenencorusedageneticallymodifiedformofE-coli,afavouritespeciesofbacteriainmicrobialgenetics,toproduceBioIsoprene.Bysplicingingenesfromotherbugs,thecompanywasabletoengineersyntheticmetabolicpathways-onesthatdonotexistinnature-thatenablethebacteriatoproduceisoprenefromthesugarsfoundinplantmaterialssuchassugarcane,corncobsandswitchgrass.

TheEconomist

  1. Writeanessaytosupportthestatement:“Chemistryisascienceofwonders”.

    1. TheEconomist

СПИСОКЛИТЕРАТУРЫ

    1. http://sci-lib.com/chemistry

    2. PeggyDanielsBecker,AlternativeEnergy

    3. TheNewYorkTimes

    4. MailOnline

    5. TheTelegraph

    6. SanjayK.Mazumdar,Ph.D.COMPOSITESMANUFACTURING

    7. http://anomalia.kulichki.ru/text6/189.htm

    8. PracticalGrammar.JohnHughesandCeriJones.2011Heinle,CengageLearning.

10.http://promdesigns.ru/

11.http://znaeteli.ru/stati/interesnye-matematicheskie-fakty/

  1. http://www.woodpellets.com/cgbin/cms/index.cgi?ext=content&pid

  2. UseofEnglish.ExaminationPractice.VirginiaEvans.ExpressPublishing2012.

  3. OxfordAdvancedLearner’sDictionary.8thedition.SallyWehmeir.OxfordUniversityPress.

С.А.ПономареваД.А.Малинина

Yourmajestyscience

Учебноепособие

Липецк

Липецкийгосударственныйтехническийуниверситет2013

Учебноеиздание

ПономареваСветланаАлександровнаМалининаДианаАлександровна

YOURMAJESTYSCIENCE

РедакторР.А.Черникова

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