Commercial polyisobutylene (PIB or butyl rubber) is synthesized via cationic polymerization. Explain why it cannot be made through free radical or anionic polymerization

Q: Write the repeating unit of the polymer formed from the following reaction and propose a mechanism…

A: Given: The repeating unit contains diepoxide and diamine groups so the polymerization of these…

Q: Poly(vinyl alcohol), a hydrophilic polymer used in aqueous adhesives, is made by polymerizing vinyl…

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Q: polymerization of the protected dithiocatechol monomer. Draw the product for the following…

A: A polymer is a large molecule that is formed by the repetition of small units called a monomer, and…

Q: The anionic polymerization of ε-caprolactam. Even if the reaction rate between caprolactam is slow,…

A: A question based on polymer chemistry, which is to be accomplished.

Q: Which illustrates a random co-polymer? O a. O b. C.

A: There are four picture of copolymer . we have to find out the Random copolymer amoung them.

Q: Poly(vinyl alcohol), a hydrophilic polymer used in aqueous adhesives, is made by polymerizing vinyl…

A: Poly vinyl alcohol (PVA) cannot be prepared by direct polymerization of vinyl alcohol. Its synthesis…

Q: Which monomer gives a greater yield of polymer, 5-hydroxypentanoic acid or 6-hydroxyhexanoic acid?…

A: Since we have a hydroxy group and carboxylic acid group present in the monomers. Hence there are two…

Q: Draw the mechanisms for the following processes in the radical polymerization of styrene in toluene:…

A: Polymerization is the process in which small molecules called monomers combine to form large…

Q: Chain branching occurs in cationic polymerization much as it does in free-radical polymerization.…

A: Concept Introduction: Cationic polymerization is the polymerization in which the reaction of…

Q: Describe by showing the chemical reactions how you would prepare linear poly(methacrylate) with a…

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Q: Urylon fibers are used in premium fishing nets because the polymer is relatively stable to UV light…

A: SOLUTION: Step 1: Urylon is a condensation polymer. The functional group present is polyurea. Urylon…

Q: FACULTY OF ENG Nylons are environment) and lose their strength in vve when implanted (not good in…

A: a) Nylons are non-absorbable and lose their strength in vivo when implanted.  b) Degradation rate…

Q: 2. 1-Methylstyrene (right) polymerizes under both cationic and anionic conditions a. Briefly…

A: A polymer is a macromolecule that is formed when a number of monomer units combine with each other.…

Q: Draw step Polymerisation of methyl acrylate(monomer) using benzoyl peroxide

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Q: A3 Anionic polymerization of styrene is generally known to produce polymers with a narrow molecular…

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Q: (a) Which monomer is most likely to undergo anionic polymerization? Justify your choice. ( b)Which…

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Q: The mechanism given for cationic polymerization of isobutylene  shows that all the monomer molecules…

A: During polymerization, the chain reaction involves the intermediate formation, which may be a…

Q: Draw the starting structure that would lead to this polymer under radical cond

A: The polymer given is,

Q: Complete the following addition of condensation polymerisation reactions by by filling in the…

A: Polymerization is a process in which large number of monomers combine to form a macromolecule called…

Q: Please draw the retrosynthesis of this polymer below. b) Draw the structure of another polymer that…

A: The above molecule is  polymer molecule. The reaction takes place between NH2 group and C=N=O group.…

Q: Which reaction—dehydration synthesis or hydrolysis—converts a polymer to its monomers? Which one…

A: During polymerisation reaction, i.e. converting a monomer into polymer We have to remove H2O…

Q: How much sodium does one need to prepare 1 kg of polystyrene of molecular weight 300,000 b anionic…

A: In anionic polymerizations a counterion is always there which is derived from Sodium Anionic…

Q: Part A Draw a mechanism for a base-catalyzed polymerization of methyl a-methacrylate to give the…

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Q: Draw Anionic polymerization mechanism for the next reaction, poly (methyl methacrylate) (PMMA)…

A: Anionic polymerization is a type of addition polymerization of the monomers initiated with anions.…

Q: 2) For the monomer given determine what type of polymerization (radical, anionic, cationic, and/or…

A: Cationic, anionic and radical polymerization is the polymerization in which initiators used are…

Q: The addition of which two reagents are also necessary to initiate the polymerization (gel formation)

A: The initiation is the formation of Radical.

Q: Styrene derivatives such as A can be polymerized by way of cationic rather than radical…

A: Polymer can be defined as the chemical compound that is formed by the combination of one or more…

Q: - How does the molecular weight change vs % conversion in a step polymerization? Explain this…

A: Since you have posted a question with multiple questions, we will solve first questions for you. To…

Q: What polymer can be made from the following monomer? What kind of polymerization mechanism should be…

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Q: (a) Show how poly(propylene oxide) can be synthesized via anionic ring-opening polymerization. (b)…

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Q: From which name reaction Tamiflu can be synthesized?

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Q: What product is obtained from ring-opening metathesis polymerization of each of the following…

A: Alkene Metathesis or olefin metathesis: This breaks the double bond of an alkene and then rejoins…

Q: Write the mechanism of free radical polymerization of ethene.

A: Polyethylene or polythene is the most popular material found today. It is a polymer, used mainly for…

Q: how the polyesters is synthesied using reactive distillation

A: Solution:        Reactive distillation is an efficient and economic method for the completion of…

Q: Draw the starting structure that would lead to this polymer under radical conditions.

A: A question based on polymer chemistry, which is to be accomplished.

Q: Rank the following monomers in order of increasing reactivity toward cationic polymerization (least…

A: More the electron donating groups present, greater is the stabilization of the cation formed, and…

Q: What monomer can be used with benzoyl peroxide and under what conditions? ii) What monomer can be…

A: i) Benzoyl peroxide is used as catalyst for the free radical polymerization.

Q: Terephthaloyl dichloride and p-phenylenediamine were polymerized to form a copolymer called Kevlar…

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Q: a) Compare the characteristic features of polymerization by step-growth and chain- growth…

A: a. A. Chain growth polymerization involves unsaturated monomers while step growth polymerization…

Q: Acrylonitrile polymerized with DMF at 25C, with fecl3.h2o as catalyst and PPh3 as initiator…

A: polymerization is conform to first-order with respect to the monomer concentration and…

Q: Explain the Mechanism - Forming Branched Polyethylene During RadicalPolymerization ?

A: A polymerization in which the polymers are formed by the successive addition of building blocks.…

Q: Why propagation step produce energy in chain growth polymerizations?

A: In this question, we will discuss about why progagation step produce energy in chain growth…

Q: Q1: Clarify the differences between the cationic and anionic polymerization in propagation step-

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Q: Delrin (polyoxymethylene) is a tough self-lubricating polymer used in gear wheels. It is made by…

A: Whether Delrin is a chain-growth polymer or step-growth polymer has to be given.

Q: The copolymerization of chloroethene and propene by free radical polymerizatlon produces which…

A: The given options are,

Types of Polymers on the basis of Method of Preparation