Which set of monomers was used to produce the polymer shown In the box? Click on a letter A through D to answer. HOH но но он но HO, HOH D. но HO но
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- Show the structure of the polymer that results from heating the following diepoxide and diamine:Do you think that 4-methoxystyrene will more easily undergo anionic or cationic polymerization? Explain your answer.The following polymer A-) How do you synthesize it? B-) What are the advantages and disadvantages compared to PET?
- QUESTION1: (this is the full question however can you answer part c,e and f) Methyl methacrylate is polymerized by free radical polymerization at 70 oC to form long polymer chains.(a) Draw the chemical structure of methyl methacrylate, define its molecular formula and molecular weight (in g/mol). (b) If benzoyl peroxide is used as the initiator for the polymerization of methyl methacrylate please write the chemical structures of the compounds formed during the initiation step ofthe polymerization. What would happen if the reaction is not heated at 70 oC? (c) Write the chemical structures of the polymers formed during the propagation and termination steps of the polymerization. (d) Write the trade name of the polymer formed by the polymerization of methyl methacrylate and two of its common applications. (e) If a polymer with degree of polymerization 100 is synthesized during the reaction, determine its molecular weight (in g/mol). (f) If from the polymerization of methyl methacrylate a…Radical polymerization of styrene gives a linear polymer. Radical polymerization of a mixture of styrene and 1,4-divinylbenzene gives a cross-linked network polymer of the type shown in Figure 29.1. Show by drawing structural formulas how incorporation of a few percent of 1,4-divinylbenzene in the polymerization mixture gives a cross-linked polymer.How can head-to-head poly(vinyl bromide) be synthesized? head-to-head poly(vinyl bromide)CH2CHCHCH2CH2CHCHCH2Br Br Br Br
- 1. Write down all the steps of the reaction of 2-Methyl-2-hexene with sulfuric acid and name the product formed. Will provide helpful ratings for correct solution.Which monomer and which type of initiator can you use to synthesize each of the following polymers?Which reaction—dehydration synthesis or hydrolysis—converts a polymer to its monomers? Which one convertsmonomers to a polymer? Explain your answer
- 1.- 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?1.- How does the molecular weight change vs % conversion in a step polymerization? Explain this behavior and why does it occur? 2.- Name at least 3 requirements for obtaining a high molecular weight polymer by step polymerization. 3.- How can you minimize cyclization reactions in a step polymerization? Explain with equations and narrative Why do you want to minimize cyclization? Is it possible to eliminate cyclic products completely?draw a mechanism for the polymerization of caprolactam to nylon using curved arrows to show the flow of electrons and indicate whether it is a chain reaction or a step-growth reaction.