Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 15, Problem 36P
Delrin (polyoxymethylene) is a tough self-lubricating
- a. Propose a mechanism for formation of a segment of the polymer.
- b. Is Delrin a chain-growth polymer or a step-growth polymer?
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Chapter 15 Solutions
Essential Organic Chemistry (3rd 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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- Neat hand written explanationarrow_forward1.- Why are carbon nanotubes and graphene currently considered as reinforcing additives for polymers? What effect do they have on the polymer? What is the mechanism by which they can enhance the Young’s modulus and tensile strength of a polymer? 2.- Kapton is the trade name of a polyimide a) How would you synthesize this polymer? b) During the first stage of the reaction, poly(amic acid) is formed. If you need to follow this stage of the polymerization, what spectroscopic techniques would you use and what groups should you focus on? c) How would you form Kapton films, which can be used as support for solar sails? d) What are the disadvantages of Kapton that have limited their use? Why does this polymer present this weakness?arrow_forwardA particularly strong and rigid polyester used for electronic parts is marketed under the trade name Glyptal. It is a polymer of terephthalic acid and glycerol. Draw a segment of the polymer and explain why it is so strong.arrow_forward
- 4. Circle the monomer(s) used to synthesize Polymer A (Note: there may be more than one answer) Polymer A A fmmm 5 CH3 CH₂ Et CH3 Et CH3 Et CH₂ -CH₂ H3C. n B E Et Et H₂C F -Etarrow_forwardWhen certain cycloalkenes are used in metathesis reactions, ringopening metathesis polymerization (ROMP) occurs to form a highmolecular- weight polymer, as shown with cyclopentene as the starting material. The reaction is driven to completion by relief of strain in the cycloalkene.What products are formed by ring-opening metathesis polymerization of each alkene?arrow_forwardNitesharrow_forward
- b. Draw the arrow pushing mechanism for the polycondensation of the following two monomers and the structure of the resulting polymer. OH HOarrow_forwardPoly(vinyl alcohol) is a polymer used to make fibers and adhesives. It is synthesized by hydrolysis or alcoholysis of the polymer obtained from polymerization of vinyl acetate as shown below. a. Why is poly(vinyl alcohol) not prepared by polymerizing vinyl alcohol? b. Is poly(vinyl acetate) a polyester?arrow_forward5. When does the molecular weight of the polymer increase the most during a step-growth polymerization process? A. At the end of polymerization (high conversion) B. At the beginning of polymerization (low conversion) C. At the middle of polymerization (medium conversion) D. The molecular weight of produced polymer chains does not change during polymerizationarrow_forward
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