Polymer Chemistry Course‚ KTE 080‚ 2014 Patric Jannasch ———————————————————————————————— Laboratory procedures in polymer chemistry Polymer & Materials Chemistry 1. Free Radical Bulk Polymerization of Styrene This protocol describes the bulk polymerization of styrene at 60 oC using 2‚2´azobisisobutyronitril (AIBN) as an initiator. The monomer styrene first has to be purified before it can be used. The purification is performed in order to remove inhibitors and impurities‚ which can
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Shabnaz Rob 4.29.14 Aldol Condensation Introduction The purpose of this lab was to prepare dibenzalacetone (1‚5-diphenyl-1‚4-pentadiene-3-one). The preparation of dibenzalacetone is base catalyzed. It is a compound reaction that involves an aldol reaction and then dehydration. This overall reaction is known as the Clasien-Schmidt condensation. Aldol addition occurs when an aldehyde forms an aldol in equilibrium. Usually two molecules of aldehydes combine with a base two
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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(b) SiF4 silicon tetrafluoride (c) S4N4 tetrasulfur tetranitride (d) SF2 sulfur difluoride (e) H2S dihydrogen monosulfide (f) P4O10 tetraphosphorus decaoxide 27. Name each of the following compounds. (a) Ca(NO3)2 calcium nitrate (b) KOH potassium hydroxide (c) MgCO3 magnesium carbonate (d) Na3PO4 sodium phosphate (e) LiNO3 lithium nitrate (f) Mg(C2H3O2)2 magnesium acetate 28. Write formulas for each of the following compounds. (a) iron(II) oxide FeO (b) tin(II) sulfide
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Yemen‚ Pakistan‚ and Somalia have allowed drone strikes because they are unable to control the terrorist there. Terrorist are attacking places that have done nothing to them. So they places being attacked should be allowed self-defense. As Harold Koh‚ Yale Professor of International Law‚ stated‚ “United States also has the right under international law to “anticipatory self-defence” which gives the right to use force against a real and imminent threat.” (Source J 8) Drones can cause people to become
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Chelsea Johnson 03-15-15 COM312 Being a Nanny Children are full of tricks when it comes to negotiating wether it be with candy‚ what they want to wear‚ where they want to go for the day‚ or how they think they should be punished. A nanny is job in which one cares for children in the comfort of their own home. That being said there are several situations where the nanny needs to quickly think about how to resolve a situation and usually this ends in compromising with the child to make sure that both
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Chemistry102 5/7/2013 Lecture Presentation Chapter 17 Additional Aspects of Aqueous Equilibria John D. Bookstaver St. Charles Community College Cottleville‚ MO © 2012 Pearson Education‚ Inc. Common Ion Effect HA(aq) + H2O(l) ⇔ A−(aq) + H3O+(aq) • Adding a salt containing the anion NaA‚ which • is the conjugate base of the acid (the common ion)‚ shifts the position of equilibrium to the left This causes the pH to be higher than the pH of the acid solution 9lowering the H3O+ ion concentration
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was mixed blood. - His uncle was Chief Mistawāsis (Big Child). - He was adopted by Chief Crowfoot of the Blackfoot tribe when he was 30 years old because he lost his son in a raid of a Cree camp. -Crowfoot gave Poundmaker a Blackfoot name Makoyi-koh-kin (Wolf Thin Legs). - Poundmaker had three wives and fathered several children. - His second wife Grass Women left him when he was imprisoned in P.A. because of the Riel rebellion. - When he was released he married Stony Woman though she was much
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References: Kiew‚ R. & I.M. Turner‚ 2003. Are any plants endemic to Singapore? The Gardens ’ Bulletin‚ 55(2): 173-184. Koh‚ L.L.‚ T.K. Tan‚ L.M. Chou & N.K.C. Goh‚ 2002. Antifungal properties of Singapore gorgonians: a preliminary study. Journal of Experimental Marine Biology and Ecology‚ 273(2): 121-130. Lovejoy‚ T.E.‚ H. Lee‚ 2006. Climate change and biodiversity. Yale
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(Accessed on 1 November 2012) (Accessed on 16 September 2012) 9 http://www.thereadinggroup.sg/Articles/Unmasking%20Consumerism.pdf (Accessed on 10 September 2012) (Accessed on 7 October 2012) 11 http://www.tsglobalist.com/2011/12/31/consumerism-by-grace-koh/ (Accessed on 7 October 2012)
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