Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Question
Chapter 8, Problem 8.73SP
Interpretation Introduction
Interpretation: The given question stated that when styrene is commercially polymerized, about
Concept introduction:
To determine: The explanation for the addition of small amount of divinylbenzene has a marked effect on the properties of the polymer.
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When styrene (vinylbenzene) is commercially polymerized, about 1–3% of 1,4-divinylbenzene is often added to thestyrene. The incorporation of some divinylbenzene gives a polymer with more strength and better resistance to organicsolvents. Explain how a very small amount of divinylbenzene has a marked effect on the properties of the polymer
One common type of cation exchange resin is prepared by polymerization of a mixture containing styrene and 1,4-divinylbenzene . The polymer is then treated with concentrated sulfuric acid to sulfonate a majority of the aromatic rings in the polymer.
Q.) Show the product of sulfonation of each benzene ring.
The reaction of p-cresol with CH2=O resembles the reaction of phenol (PhOH) with CH2=O, except that the resulting polymer is thermoplastic but not thermosetting. Draw the structure of the polymer formed, and explain why the properties of these two polymers are so different.
Chapter 8 Solutions
Organic Chemistry (9th Edition)
Ch. 8.3A - Predict the major products of the following...Ch. 8.3A - a. When 1 mole of buta-1,3-diene reacts with 1...Ch. 8.3B - Predict the major products of the following...Ch. 8.3B - Show how you would accomplish the following...Ch. 8.4B - Propose a mechanism to show how...Ch. 8.4B - Predict the products of the following hydration...Ch. 8.6 - a. Propose a mochansm fortho following reaction....Ch. 8.6 - Prob. 8.8PCh. 8.6 - Prob. 8.9PCh. 8.7A - Prob. 8.10P
Ch. 8.7A - Prob. 8.11PCh. 8.7C - Prob. 8.12PCh. 8.7C - Prob. 8.13PCh. 8.7C - a. When (Z)-3-methylhex-3-ene undergoes...Ch. 8.7C - Prob. 8.15PCh. 8.7C - Prob. 8.16PCh. 8.8B - Prob. 8.17PCh. 8.8B - Prob. 8.18PCh. 8.9 - Prob. 8.19PCh. 8.9 - Prob. 8.20PCh. 8.9 - Prob. 8.21PCh. 8.9 - Prob. 8.22PCh. 8.10 - Prob. 8.23PCh. 8.10 - Prob. 8.24PCh. 8.10 - Prob. 8.25PCh. 8.11A - Prob. 8.26PCh. 8.11B - Prob. 8.27PCh. 8.11B - Prob. 8.28PCh. 8.12 - Prob. 8.29PCh. 8.13 - a. Propose a mechanism for the conversion of...Ch. 8.13 - Magnesium monoperoxyphthalate (MMPP) epoxidizes...Ch. 8.13 - Predict the major products of the following...Ch. 8.13 - When 1,2-epoxycyclohexane (cyclohexene oxide) is...Ch. 8.14C - Predict the major products of the following...Ch. 8.14C - Prob. 8.35PCh. 8.15B - Prob. 8.36PCh. 8.15C - Predict the major products of the following...Ch. 8.16A - Prob. 8.38PCh. 8.16A - Prob. 8.39PCh. 8.16B - Prob. 8.40PCh. 8.16B - Prob. 8.41PCh. 8.16C - Prob. 8.42PCh. 8.17B - Prob. 8.43PCh. 8.17B - Prob. 8.44PCh. 8.17B - Show how you would synthesize each compound,...Ch. 8 - Prob. 8.46SPCh. 8 - Prob. 8.47SPCh. 8 - Give the products expected when the following...Ch. 8 - Show how you would make the following compounds...Ch. 8 - Using 1,2-dimethylcyclohexene as your starting...Ch. 8 - Show how you would synthesize each compound using...Ch. 8 - Prob. 8.52SPCh. 8 - Show how you might use olefin metathesis to...Ch. 8 - Prob. 8.54SPCh. 8 - Prob. 8.55SPCh. 8 - Propose mechanisms consistent with the following...Ch. 8 - Prob. 8.57SPCh. 8 - Prob. 8.58SPCh. 8 - Draw a reaction-energy diagram for the propagation...Ch. 8 - Prob. 8.60SPCh. 8 - Prob. 8.61SPCh. 8 - Prob. 8.62SPCh. 8 - Prob. 8.63SPCh. 8 - Prob. 8.64SPCh. 8 - Prob. 8.65SPCh. 8 - Prob. 8.66SPCh. 8 - Prob. 8.67SPCh. 8 - Prob. 8.68SPCh. 8 - Prob. 8.69SPCh. 8 - Prob. 8.70SPCh. 8 - Prob. 8.71SPCh. 8 - Prob. 8.72SPCh. 8 - Prob. 8.73SPCh. 8 - Prob. 8.74SPCh. 8 - Prob. 8.75SPCh. 8 - Prob. 8.76SPCh. 8 - Prob. 8.77SPCh. 8 - Prob. 8.78SPCh. 8 - Prob. 8.79SP
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- the molar mass of the product obtained by the action of an acetylene hydrocarbon with excess hydrogen bromide, is 4 times greater than that of hydrocarbon. Find the molecular formula of acetylene hydrocarbonarrow_forwardIn the chemical synthesis of DNA and RNA, hydroxyl groups are normally converted to triphenylmethyl (trityl) ethers to protect the hydroxyl group from reaction with other reagents. Triphenylmethyl ethers are stable to aqueous base but are rapidly cleaved in aqueous acid. (a) Why are triphenylmethyl ethers so readily hydrolyzed by aqueous acid? (b) How might the structure of the triphenylmethyl group be modified to increase or decrease its acid sensitivity?arrow_forwardAssuming that benzaldehyde is the limiting reagent for the synthesis of stilbene, that stilbene is the limiting reagent for the synthesis of stilbene dibromide, and that stilbene dibromide is the limiting reagent for the synthesis of diphenylacetylene; what is the overall % yield of diphenylacetylene from benzaldehyde given the percentage yield of each step of the reaction sequence as follows? Give only two significant digits. If the answer is a whole number with two digits, do not include the decimal. 52% 87% benzaldehyde → stilbene → stilbene dibromide 41% Answer: diphenylacetylene Notes: For our multi-step synthesis we cannot just calculate the yield based on starting amount of benzaldehyde and final amount of diphenylacetylene because your group may have been supplemented with commercial material at one or more steps. In truth most chemist use an excess of the least expensive reagent to increase their yield. So in our case benzyltriphenylphosphonium chloride should probably be our…arrow_forward
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