Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 29, Problem 29.34P
Radical
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a copolymer is made up of 40.01% polystyrene 20.38% acrylonyl and 31.51% polybutadiene a) Calculate the Molar Fraction b) the Degree of Polymerization if there is a weight of 320, 000 gr of copolymer c) carry out the polymerization reaction d) What is the name of this polymer and e) Mention some applications of some monomer
Briefly discuss emulsion and suspension polymerization techniques.
Show the differences between the chain-growth and step-growth mechanisms of polymerization.
Chapter 29 Solutions
Organic Chemistry
Ch. 29.2 - Prob. 29.1PCh. 29.5 - Prob. 29.2PCh. 29.6 - Prob. AQCh. 29.6 - Prob. BQCh. 29.6 - Prob. CQCh. 29.6 - Prob. DQCh. 29.6 - Prob. EQCh. 29.6 - Prob. FQCh. 29.6 - Prob. 29.3PCh. 29.6 - Prob. 29.4P
Ch. 29 - Prob. 29.5PCh. 29 - Prob. 29.6PCh. 29 - Prob. 29.7PCh. 29 - Prob. 29.8PCh. 29 - Prob. 29.9PCh. 29 - Prob. 29.10PCh. 29 - Prob. 29.11PCh. 29 - Prob. 29.12PCh. 29 - Prob. 29.13PCh. 29 - Prob. 29.14PCh. 29 - Prob. 29.15PCh. 29 - Prob. 29.16PCh. 29 - Polycarbonates (Section 29.5C) are also formed by...Ch. 29 - Prob. 29.18PCh. 29 - Prob. 29.19PCh. 29 - Prob. 29.20PCh. 29 - Prob. 29.21PCh. 29 - Draw a structural formula of the polymer resulting...Ch. 29 - Prob. 29.23PCh. 29 - Prob. 29.24PCh. 29 - Prob. 29.25PCh. 29 - Select the monomer in each pair that is more...Ch. 29 - Prob. 29.27PCh. 29 - Prob. 29.28PCh. 29 - Prob. 29.29PCh. 29 - Prob. 29.30PCh. 29 - Prob. 29.31PCh. 29 - Prob. 29.32PCh. 29 - Prob. 29.33PCh. 29 - Radical polymerization of styrene gives a linear...Ch. 29 - Prob. 29.35PCh. 29 - Prob. 29.36PCh. 29 - Prob. 29.37PCh. 29 - Prob. 29.38P
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- Chain branching is not as common with anionic polymerization as it is with free-radical polymerization and cationic polymerization. Compare the relative stabilities of the intermediates in this mechanism with those you drew for chain branching in the cationic polymerization of styrene. Explain why chain branching is less common in this anionic polymerization.arrow_forwardCommercial polyisobutylene (PIB or butyl rubber) is synthesized via cationic polymerization. Explain why it cannot be made through free radical or anionic polymerizationarrow_forwardAlthough styrene undergoes both cationic and anionic polymerization equally well, one method is often preferred with substituted styrenes. Which method is preferred with each compound? Explain.arrow_forward
- A sample of polystyrene is composed of a series of fractions of different sized molecules. a)Calculate the number average and weight average molecular weights of this sample as well as the PDI. Comment on the PDI – is it polydispersed? b)How would adding styrene oligomer change the average molecular weights? Added amount is 5 wt. % of polymer mass and M = 1,000 g/mol. c)What would be the potential polymerisation pathways you may follow to polymerise this polymer d)What would happen if you fractionate the polymer to remove all fractions above 20,000 Da and 50% of any fraction above 15,000 Da? Recalculate the Mn, Mw, and PDI for this new system. e)What type of polymeric materials does this distribution of Mw for the new system corresponds to? Would it be likely solid or liquid at room temperature and atmospheric pressure?arrow_forwardPolyisobutylene is one of the components of butyl rubber used for making inner tubes. What conditions (cationic, anionic, free-radical) would be most appropriate for polymerization of isobutylene? Explain your answer.arrow_forwardPlease show the product and mechanism for the cationic polymerization of 2-butene using BF3/H2O to catalyze polymerization. Do you expect this to be an effective polymerization strategy for this monomer? Why or why not?arrow_forward
- Why do you think initiator molecule is needed to induce the polymerization of ethylenearrow_forwardWhat is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.arrow_forwardExplain with more details, how you can prepare poly(ethylene oxide) by using Anionic and Cationic polymerisationarrow_forward
- A synthetic polymer was produced via addition polymerization to a degree of polymerization of 925 and an average molecular weight of 40,700 g/mol. Of those listed below, which is most likely that polymer? Explain and supportarrow_forwardOrganic chemistry: brief introduction of interfacial polymerization by nylonarrow_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
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