To synthesize linear polyethylenimine instead of the branched form (Problem 26.51), 2-ethyl-2-oxazoline can undergo ring-opening polymerization , followed by a chemical modification of the side groups. How to carry out the chemical modification after polymerization is to be proposed. Concept introduction: In a ring-opening polymerization, cyclic monomers produce an acyclic polymer . After polymerization, prior to the chemical modification, the polymer’s repeating unit contains an O=C-N group, characteristic of an amide. After chemical modification, the functional group is C-N , characteristic of an amine . To carry out this transformation, a nucleophilic addition-elimination is required, which will eliminate the N- containing portion as a leaving group.

Question

Want to see the full answer?

Answer 1

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 26, Problem 26.53P

Interpretation Introduction

Interpretation:

To synthesize linear polyethylenimine instead of the branched form (Problem 26.51), 2-ethyl-2-oxazoline can undergo ring-opening polymerization, followed by a chemical modification of the side groups. How to carry out the chemical modification after polymerization is to be proposed.

Concept introduction:

In a ring-opening polymerization, cyclic monomers produce an acyclic polymer. After polymerization, prior to the chemical modification, the polymer’s repeating unit contains an O=C-N group, characteristic of an amide. After chemical modification, the functional group is C-N, characteristic of an amine. To carry out this transformation, a nucleophilic addition-elimination is required, which will eliminate the N- containing portion as a leaving group.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Please draw

9. compore the Following two Venctions IN termy Of Ronction Rate and explan in detail the reasoning that led to your conclusion +He p₁₂ 11- ㅐ 15 .. +He H #H H / H b. Compare the Following too reactions 14 terms of reaction Rate and explain in detail the reasoning that led to your conclusion Н d-C- tłu Na +2446 е -ll +2n "H

a. •Write all of the possible products For the Following ronction А ----- H - H H + H₂0 H+ Н b. in Rite the complete reaction Mechaniszn For the Formation of each product. ·C. Suggest what Reaction conditions could Result in each product being the major Product of the veaction:

Answer 2

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 26, Problem 26.53P

Interpretation Introduction

Interpretation:

To synthesize linear polyethylenimine instead of the branched form (Problem 26.51), 2-ethyl-2-oxazoline can undergo ring-opening polymerization, followed by a chemical modification of the side groups. How to carry out the chemical modification after polymerization is to be proposed.

Concept introduction:

In a ring-opening polymerization, cyclic monomers produce an acyclic polymer. After polymerization, prior to the chemical modification, the polymer’s repeating unit contains an O=C-N group, characteristic of an amide. After chemical modification, the functional group is C-N, characteristic of an amine. To carry out this transformation, a nucleophilic addition-elimination is required, which will eliminate the N- containing portion as a leaving group.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 26, Problem 26.53P

Interpretation Introduction

Interpretation:

To synthesize linear polyethylenimine instead of the branched form (Problem 26.51), 2-ethyl-2-oxazoline can undergo ring-opening polymerization, followed by a chemical modification of the side groups. How to carry out the chemical modification after polymerization is to be proposed.

Concept introduction:

In a ring-opening polymerization, cyclic monomers produce an acyclic polymer. After polymerization, prior to the chemical modification, the polymer’s repeating unit contains an O=C-N group, characteristic of an amide. After chemical modification, the functional group is C-N, characteristic of an amine. To carry out this transformation, a nucleophilic addition-elimination is required, which will eliminate the N- containing portion as a leaving group.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 26, Problem 26.53P

Interpretation Introduction