Q1: Clarify the differences between the cationic and anionic polymerization in propagation step. Q2: What is the function of catalyst in coordination polymerization? Q3: Explain briefly the classifications of step growth polymerization.
Q: List the following group of monomers in order of decreasing ability to undergo cationic…
A: 1-The ability of monomers to undergo cationic polymerization is based upon the formation of the…
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: Briefly Discuss emulsion polymerization with necessary figure.
A:
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: Polyisobutylene is one of the components of butyl rubber used for making inner tubes. What…
A:
Q: How to make a specific polymer conductive? Explain with suitable example and mechanisms.
A:
Q: Hexafluoropropene (as shown) can only be polymerized by free radical chemistry. A) Explain why…
A: Free-radical polymerization: it is a method of polymerization in which a polymer forms by the…
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: A statistical copolymer formed from addition polymerization of acrylamide (71 g/mol) and methyl…
A: The repetition of the smallest unit takes place in the formation of a big molecule. This big…
Q: Although chain branching in radical polymerizations can occur by intermolecular H abstraction as…
A: The given reaction involves synthesis of a LDPE (low density polyethylene). The mechanism of the…
Q: Discuss the characteristics of radical polymerization. Include in your answer a detailed discussion…
A: characteristics of radical polymerization. 1) in the first step of the radical polymerization…
Q: Why should the monomers used in addition polymerisation through free radical pathway be very pure?
A:
Q: An equimolar blend of 1,4-hydroquinone diallylether and ethylene glycol dimercaptoacetate containing…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Predict the order of reactivity (and justify your prediction) of the given monomers. Styrene,…
A: As per the guideline, since you have asked multiple questions, we have solved the first question…
Q: Unlike the interfacial method, melt polycondensation requires a substantial amount of heating to…
A: Polymerization is the process of the addition of monomers to give long chains which are called…
Q: the production of vinyl polymers using bulk methods
A: Bulk polymerization or mass polymerization is carried out by adding a soluble radical initiator to…
Q: Using AIBN as the initiator, illustrate the mechanism of free radical polymerization that produces…
A:
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 and describe the mechanism of radical-catalysed polymerization of ethene to poly(ethene) (also…
A: To give: The mechanism of radical polymerization of ethene to polythene?
Q: ROOR n RO
A: The initiation and propagation step of this radical polymerization reaction given below .…
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: A chemist carried out two polymerization reactions. One flask contained a monomer that polymerizes…
A: The question tells that a chemist carried out two polymerzation reactions. One reaction contained a…
Q: Give a single benefit for each polymerisation from carrying them out under a nitrogen atmosphere?…
A: Introduction: The polydispersity index (PDI) is dependent on the two parameters, i.e (I) number…
Q: Arrange the following groups in increasing CIP priority order: *
A:
Q: Explain the variables in the Carothers equation, and its physical meaning. How can this equation be…
A: Since you have posted a question with multiple questions, we will solve first question for you. To…
Q: Describe the polymerization of 2,2-dimethyloxirane by a cationic mechanism.
A: Given reaction, The polymerization of 2,2-dimethyloxirane by a cationic mechanism
Q: Are there any types of C-C bond that can be formed from a Friedel-Crafts reaction other than through…
A: ⊙ In friedel craft reaction C-C bond for mation takes place through acylation and alkylation.
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: Describe the polymerization of 2,2-dimethyloxirane by an anionic mechanism.
A: (a) Anionic polymerization of 2,2-dimethyloxirane
Q: Although chain branching in radical polymerizations can occur by intermolecular H abstraction as…
A: a. The given reaction involves synthesis of a LDPE (low density polyethylene). The mechanism of the…
Q: Give a mechanism, showing chain branching during the free-radical polymerization of styrene. There…
A: The product formed in the reaction depends upon the stability of radicals formed in the…
Q: Release HCI has a strong catalytic influence on the dehydrochlorination of PVC according to: *…
A: According to our guidelines, I can only answer first question. Because you have posted multiple…
Q: Which one of the following initiators can be used for free radical chain-growth polymerization? a)…
A:
Q: 2. If 0.52 moles of terephthalic acid are reacted with 0.50 moles of ethylene glycol, what is the…
A: The polymers are macromolecules that are generated by the combination of a large no. of monomers.…
Q: the repeat molecular weight of polysty rene vait a) Compute b) Compute the num ber - arerage…
A: Polystyrene: It is a polymer composed of styrene (C8H8) as a monomer. The structure of styrene is…
Q: State the Polymer Synthesis with Less Hazardous Reagents ?
A: Polymers are macromolecules formed by the repetitive addition of smaller molecules called monomers.…
Q: Q1. Calculate the number average degree of polymerization of equimolar mixture of adipic acid and…
A: Degree of polymerization (DP)= 1/ 1-P Where P is the extent of reaction
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: 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: A sample of polystyrene is composed of a series of fractions of different sized molecules.…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Draw the mechanism for ziegler-natta-catalyzed polymerization of a subdtitude ethylene.
A: It is given that a substituted ethylene molecule is undergoing polymerization under the presence of…
Q: >Look at the structures of Vestenamer and Norsorex and show how they might be made by olefin…
A:
Q: Identify which is suitable for radical, cataionic, anaionic, condensation polymerization, and give…
A: Here we have to predict the types of polymerization occur and structure of polymer formed.
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: The two hydrophilic monomers shown below can be copolymerized in an alternating fashion in aqueous…
A: Radical reactions are initiated by radical chain initiator such as tert-butyl hydroperoxide, AIBN…
Step by step
Solved in 5 steps with 5 images
- Consider monomers A–C. (a) Rank the monomers in order of increasingreactivity in cationic polymerization. (b) Rank the monomers in order ofincreasing reactivity in anionic polymerization.(a) Which monomer is most likely to undergo anionic polymerization? Justify your choice. ( b)Which one ismost likely to undergo cationic polymerization? Justify your choice.One common type of cation exchange resin is prepared by polymerization of a mixture containing styrene and 1,4-divinylbenzene . The polymer is then treated with concentrated sulfuric acid to sulfonate a majority of the aromatic rings in the polymer. Q.) Show the product of sulfonation of each benzene ring.
- 4. Which polymer in each of the following pairs would you expect to exhibit the higher glass transition temperature? Explain your choice in each case. 7. Which polymer each of the following pairs would you expect to exhibit the nigner glass transiti temperature? Explain your choice in each case. (a) CH₂CH or CH₂CH to occul] « toalemond] (b) or (c) -CH₂CH₂NH or CH₂CH₂O- 604-604 or (d) (e) +c- -COCH₂CH₂O- CH₂CH₂CH, - flor loreman of CH(CH₂)₂1. Step-Growth Polymerization (a) Draw 2 different combinations of monomers that can be used to synthesize the following polymer and the by-products for each. .. (b) If you were asked to make this polymer on an industrial scale, which of the monomers you have selected in part (a) would you choose? In your answer, provide at least 2 engineering-related rationales your choice by considering the availability/price of the starting materials, any safety considerations for associated with using the materials/the process, or any other scalability considerations.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?
- Rank the following monomers in order of increasing reactivity toward cationic polymerization (least reactive to most reactive).(a) Compare the characteristic features of polymerization by step-growth and chain- growth mechanisms. (b) Many alkene monomers (olefins) are readily polymerized by a free-radical mechanism. However, isobutylene is usually polymerized by a cationic mechanism. Explain.(a) What is the difference between an addition polymer and a condensation polymer?(b) PVC or poly(vinyl chloride) is an addition polymer prepared by a chain of radical addition steps. Show mechanism for the propagation step (with curved single-barb arrows) for a single radical addition step, using the radicals shown, then draw the radical product. Note that the addition occurs so as to place the radical onto the CH2.
- 6) +1 eq. HBr (add slowly to organic) 7) Br heat + CH;CO,H (solvent acetic acid)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.(d) show termination and propogation process in polyethylene terephthalate (PET).