WE"LL STICK in ~ NOTHING, in march 25, 1999The article from DuPont
Editorial chapter 6Do you know what some might argue is the many important exploration for themodern plastics industry? You may be surprised to discover it in yourkitchencabinets! Roy J. Plunkett was certainly surprised inthe 1930s once heaccidentally created what is now known as Teflon. Infact, manyhouseholds today take your non-stick cookware because that granted. Small dothey recognize that Teflon, which provides cookware it"s non-stick property, isa polymer written of tetrafluoroethylene (C2F4)monomers. As debated in this article, Teflon likewise aids in maintaining materialssterile. By replacing ethene"s hydrogens with fluorine atoms, thechemical attains a slippery quality that prevents bacteria from bindingto it. Since molecules affix by sharing or exchanging electrons, itreasons that fluorine, the most electronegative element, resistsinteractions with various other molecules. The fluorine"s huge size shieldsthe interior carbons, staying clear of them native reacting-thus nothing sticksto Teflon.Teflon"s absence of chemical reactivity lends it to literally endless feasible uses. It is a popular registeredtrademark of theDupont Corporation, which has promotedtheirproduct in a selection offoreign and domestic markets. One exciting use in the ar ofchemical scientific research is the manufacturing of bottles because that storage of thereagents supplied in trace analysis. Teflon, as well as improvements indetection, permits impurities to it is in detected at the sup-ppb level.While some case there are concealed environmental dangers of Teflon andits fumes, we just recommend not maintaining your pet parakeetin thekitchen. Teflon has become a family members expression used far beyond thebounds of non-stick cookware and also its chemistry properties-even used topoke fun at the prime Minister of England.
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concern 1: What is the formula and also organization the the monomer unit the Teflon?Answer 1: the monomer unit the Teflon is Tetrafluoroethylene, i beg your pardon is C2F4. The Carbons room SP2 hybridized, and share a double bond. Two fluorine atoms room bonded to each carbon, and the geometry approximately the carbon atom is trigonal planar. inquiry 2: How could the monomer unit the Teflon it is in synthesized? give a in-depth mechanism because that the synthesis.Answer 2: to synthesize the monomer unit the Teflon, tetrafluoroethylene, we have to start through ethynyl halide, (XC2H). An initial we reduce the triple bond with fluorines to give us (HXC2F2), or difluoro-halo-ethylene. After that we minimize the double bond once again witth fluorines, offering us (HXC2F4), tetrafluoro-halo-ethane. The last step is to eliminate the HX. This restores the carbon come carbon dual bond and also gives united state our last product, (C2F4), tetrafluoroethylene. concern 3: A significant benefit come these brand-new super-slippery polymers is improved hygiene. What room some reasons this new method of keeping things sterile can be better than the old method of warm sterilization by autoclaves? room there any type of reasons that the old means might be better?Answer 3: over there are many answers to this question. Us could lug up that warm sterilization should be done over and over in comparison to the polymer which have to only be used once. Heat sterilization bring away time and also energy, but has been proven to work. Also, just due to the fact that bacteria cannot stick come these brand-new slippery polymers ~ above a chemical level, does that suggest that top top a bigger scale the polymer coated object will constantly be sterile? This new an approach of sterility certainly needs a tiny lab experience prior to it"s thought about trustworthy. question 4: exactly how are the intermolecular valve der Waal"s forces affected when we replace the hydrogens in ethane with fluorines to do the monomer unit that Teflon? Also, why room the van der Waal"s forces impacted at all?Answer 4: The valve der Waal"s forces are almost fully eradicated between the Teflon molecule and outside molecules. This is due to the fact that when we change the hydrogens v fluorines, the Teflon molecule together a totality becomes an extremely inert. The fluorine atoms avoid the short-lived dipole moments important for the Va der Waal"s pressures to exist. concern 5: How can the use of these brand-new super-slippery halogen saturated polymers eventually affect the environment? What could be several of the dangers associated with these new polymers?Answer 5: This concern is the open-ended philosophical/social/political question.
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Over there are countless acceptable responses as long as some assumed is put right into them. =) cheerio.