Pearson eText Organic Chemistry -- Instant Access (Pearson+)
8th Edition
ISBN: 9780135213711
Author: Paula Bruice
Publisher: PEARSON+
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Chapter 27.5, Problem 9P
Why does methyl methacrylate not undergo cationic
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Chapter 27 Solutions
Pearson eText Organic Chemistry -- Instant Access (Pearson+)
Ch. 27.3 - Prob. 1PCh. 27.3 - Prob. 2PCh. 27.3 - Prob. 3PCh. 27.3 - Prob. 4PCh. 27.3 - Prob. 5PCh. 27.3 - Prob. 6PCh. 27.4 - Prob. 7PCh. 27.5 - Rank the following groups of monomers from most...Ch. 27.5 - Why does methyl methacrylate not undergo cationic...Ch. 27.6 - Prob. 10P
Ch. 27.6 - Explain why, when propylene oxide undergoes...Ch. 27.6 - Which monomer and which type of initiator can you...Ch. 27.6 - Prob. 13PCh. 27.8 - Draw a short segment of gutta-percha.Ch. 27.8 - Prob. 15PCh. 27.11 - Prob. 16PCh. 27.11 - Write an equation that explains what happens if a...Ch. 27.11 - What happens to polyester slacks if aqueous NaOH...Ch. 27.11 - a. Propose a mechanism for the formation of the...Ch. 27.11 - Explain why, when a small amount of glycerol is...Ch. 27.12 - Propose a mechanism for the formation of melmac.Ch. 27.12 - Prob. 22PCh. 27.13 - Prob. 23PCh. 27 - Draw short segments of the polymers obtained from...Ch. 27 - Prob. 25PCh. 27 - Prob. 26PCh. 27 - Draw the structure of the monomer or monomers used...Ch. 27 - Prob. 28PCh. 27 - Draw short segments of the polymers obtained from...Ch. 27 - Quiana is a synthetic fabric that feels very much...Ch. 27 - Prob. 31PCh. 27 - Prob. 32PCh. 27 - Prob. 33PCh. 27 - Poly(vinyl alcohol) is a polymer used to make...Ch. 27 - Five different repeating units are found in the...Ch. 27 - Prob. 37PCh. 27 - A particularly strong and rigid polyester used for...Ch. 27 - Prob. 39PCh. 27 - Which Monomer gives a greater yield of polymer,...Ch. 27 - Prob. 41PCh. 27 - Prob. 42PCh. 27 - Why do vinyl raincoats become brittle as they get...Ch. 27 - The polymer shown below is synthesized by...Ch. 27 - Prob. 45PCh. 27 - How can head-to-head poly(vinyl bromide) be...Ch. 27 - Delrin (polyoxymethylene) is a tough...
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- How are polyiodides synthesized and characterized?arrow_forwardDraw the structure of the repeating unit of the polyamide formed from this reaction. CI H H₂N NH₂ You do not have to consider stereochemistry. + CI polymerizationarrow_forwardPolystyrene is a synthetic aromatic hydrocarbon polymer made from the monomer known as styrene. H H H Polystyrene (i) Draw the structure of styrene. Outline the mechanism when styrene reacts with HCl, following (ii) Markovnikov's rule.arrow_forward
- Draw a structural formula of the polymer resulting from base-catalyzed polymerization of each compound. Would you expect the polymers to be optically active? (S)-(+)-lactide is the dilactone formed from two molecules of (S)-(+)-lactic acid.arrow_forward(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2 = C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2 = C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Since neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.arrow_forwardProvide the mechanism for the step-growth polymerization of citric acid and ethylene glycol to form poly (ethylene glycol)-citrate. Show all steps.arrow_forward
- Thermosetting resins similar to Bakelite (Section 31.7) have also been prepared from renewable feedstocks. One method uses cardinol, the major constituent of the liquid obtained from roasted cashew nutshells. What polymer is obtained when cardinol is treated with formaldehyde (H2C=O) in the presence of a proton source? он H2C=0 H+ cardinolarrow_forwardExplain with more details, how you can prepare poly(ethylene oxide) by using Anionic and Cationic polymerisationarrow_forward(a) Hard contact lenses, which first became popular in the 1960s, were made by polymerizing methyl methacrylate [CH2=C(CH3)CO2CH3] to form poly(methyl methacrylate) (PMMA). Draw the structure of PMMA. (b) More-comfortable softer contact lenses introduced in the 1970s were made by polymerizing hydroxyethyl methacrylate [CH2=C(CH3)CO2CH2CH2OH] to form poly(hydroxyethyl methacrylate) (poly-HEMA). Draw the structure of poly-HEMA. Because neither polymer allows oxygen from the air to pass through to the retina, newer contact lenses that are both comfortable and oxygen-permeable have now been developed.arrow_forward
- Poly(vinyl alcohol), a hydrophilic polymer used in aqueous adhesives, is made by polymerizing vinyl acetate and then hydrolyzing the ester linkages. Why is poly(vinyl alcohol) made by this circuitous route? Why not just polymerize vinyl alcohol?arrow_forwardExplain why acrylonitrile (CH2 = CHCN) undergoes cationic polymerization more slowly than but-3-enenitrile (CH2 = CHCH2CN).arrow_forwardDraw (by hand) the monomers used to synthesize poly(ethyl cyanoacrylate) and poly(octyl cyanoacrylate), and chemical structure of the repeat units of each when polymerized.arrow_forward
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