Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 15.8, Problem 20P
Explain why, when a small amount of glycerol is added to the reaction mixture of toluene- 2,6–diisocyanate and ethylene glycol during the synthesis of polyurethane foam, a much stiffer foam is obtained.
glycerol
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Chapter 15 Solutions
Essential Organic Chemistry, Global Edition
Ch. 15.2 - Prob. 1PCh. 15.2 - Prob. 2PCh. 15.2 - Prob. 3PCh. 15.2 - Prob. 4PCh. 15.2 - List the following groups of monomers in order...Ch. 15.2 - List the following groups of monomers in order...Ch. 15.2 - Prob. 7PCh. 15.2 - Why does methyl methacrylate not undergo cationic...Ch. 15.2 - Which monomer and which type of initiator would...Ch. 15.2 - Prob. 10P
Ch. 15.2 - Prob. 11PCh. 15.5 - Draw a short segment of gutta-percha.Ch. 15.5 - Prob. 13PCh. 15.6 - Prob. 14PCh. 15.8 - Prob. 15PCh. 15.8 - Prob. 16PCh. 15.8 - Prob. 17PCh. 15.8 - a. Propose a mechanism for the formation of the...Ch. 15.8 - Propose a mechanism for the formation of Melmac.Ch. 15.8 - Explain why, when a small amount of glycerol is...Ch. 15.10 - Prob. 21PCh. 15 - Draw short segments of the polymers obtained from...Ch. 15 - Prob. 23PCh. 15 - Draw the structure of the monomer or monomers used...Ch. 15 - Draw short segments of the polymers obtained from...Ch. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - A particularly strong and rigid polyester used for...Ch. 15 - Prob. 30PCh. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Delrin (polyoxymethylene) is a tough...
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- write the mechanism with which toluene reacts with acetylchloride in the presence of aluminum trichloride. What is the name of this reaction?arrow_forwardExplain why the addition of a small amount of glycerol to the polymerization mixture gives a stiffer urethane foam.arrow_forwardThink about what kind of compound can be obtained when D2O is mixed in ethyl benzoate.arrow_forward
- Draw the structural formula(s) for the organic product(s) formed when the following compound is heated at reflux in an excess of concentrated HI.arrow_forward4 Why must the mixture of (Ethanol, Ethanoic acid and sulphuric acid) not be boiled during esterification process? 5- Write down the type of 2-methyl-2-propanol?arrow_forwardWhat impurities were likely removed during the washing procedure during the preparation of cyclohexene by the dehydration of cyclohexanol and an acid catalyst phosphoric acidarrow_forward
- Explain the experimental procedure of the laboratory preparation of the synthesis of Aniline from benzoic acid. Explain the chemistry behind the synthesis of Aniline from benzoic acid.arrow_forwardWhat is the critical extent of reaction (pc) based on Carother's approach to gelation for the synthesis of a polyamide using equimolar amounts of diethylene triamine and the acid chloride of trimesic acid (see structures below; assume only the primary amines react). Some helpful equations: Carothers Equation: p. = 2/fav, where fav = (ENfi) /ENi CI H2N `NH2arrow_forwardWhat could be a potential use of adipic acid? A) Not much, adipic acid is a 1,6-dicarboxylic acid, so it easily decarboxylates. B) Adipic acid is extensively used in turophilic chemistry. C) Adipic acid is structurally related to sebacic acid. - We used sabacic acid to make 6,1d-Nylon. So if adipic acid were converted into its acid chloride, and then reacted with hexane-1,6-diamine, one could make 6,6-Nylon. D) Adipic acid is extremely toxic, so it is seldomly used in synthetic chemistry.arrow_forward
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