When treated with acid, aziridine will undergo ring-opening polymerization to produce branched polyethylenimine . The mechanism that shows how a tetramer can be produced is to be drawn in which three monomers form a chain and the fourth forms a branch. Concept introduction: Acid promotes a cationic polymerization. The basic N of the aziridine is protonated first, then the nucleophilic N of another aziridine attacks the C atom of a positively charged ring in an S N 2 step to open the ring. In a growing chain, branching can occur when a nucleophilic N in the middle of the chain attacks a protonated aziridine ring. The mechanism shows how a tetramer is produced in which three monomers form a chain and the fourth forms a branch.

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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 26.51P

Interpretation Introduction

Interpretation:

When treated with acid, aziridine will undergo ring-opening polymerization to produce branched polyethylenimine. The mechanism that shows how a tetramer can be produced is to be drawn in which three monomers form a chain and the fourth forms a branch.

Concept introduction:

Acid promotes a cationic polymerization. The basic N of the aziridine is protonated first, then the nucleophilic N of another aziridine attacks the C atom of a positively charged ring in an SN2 step to open the ring. In a growing chain, branching can occur when a nucleophilic N in the middle of the chain attacks a protonated aziridine ring. The mechanism shows how a tetramer is produced in which three monomers form a chain and the fourth forms a branch.

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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 26.51P

Interpretation Introduction

Interpretation:

When treated with acid, aziridine will undergo ring-opening polymerization to produce branched polyethylenimine. The mechanism that shows how a tetramer can be produced is to be drawn in which three monomers form a chain and the fourth forms a branch.

Concept introduction:

Acid promotes a cationic polymerization. The basic N of the aziridine is protonated first, then the nucleophilic N of another aziridine attacks the C atom of a positively charged ring in an SN2 step to open the ring. In a growing chain, branching can occur when a nucleophilic N in the middle of the chain attacks a protonated aziridine ring. The mechanism shows how a tetramer is produced in which three monomers form a chain and the fourth forms a branch.

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Answer 3

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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 26.51P

Interpretation Introduction

Interpretation:

When treated with acid, aziridine will undergo ring-opening polymerization to produce branched polyethylenimine. The mechanism that shows how a tetramer can be produced is to be drawn in which three monomers form a chain and the fourth forms a branch.

Concept introduction:

Acid promotes a cationic polymerization. The basic N of the aziridine is protonated first, then the nucleophilic N of another aziridine attacks the C atom of a positively charged ring in an SN2 step to open the ring. In a growing chain, branching can occur when a nucleophilic N in the middle of the chain attacks a protonated aziridine ring. The mechanism shows how a tetramer is produced in which three monomers form a chain and the fourth forms a branch.

Expert Solution & Answer

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Check out a sample textbook solution

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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 26.51P

Interpretation Introduction