An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene. Concept introduction: During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the fifth carbon. This results in a transition state which is a cyclic arrangement of six atoms. This reduces the randomness of the transition state as compared to the open chain polymer. During this process, a primary free radical is converted to a more stable secondary free radical. This step is exothermic since products of this step are more stable than the reactants.

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Answer 1

Question

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

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Draw the two products of the reaction. H₂C. CH₂ H :0: CH3 CH₂ +1

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Answer 2

Question

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Answer 6

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Answer 7

Chapter 28.8, Problem 7P

Interpretation Introduction

Interpretation:

An explanation is to be suggested for the observation that branches shorter or longer than four carbonsare found infrequently in polyethylene.

Concept introduction:

During the intramolecular hydrogen transfer, the carbon atom at the end of the polymer chain, which has one unpaired electron, abstracts a hydrogen atom from the

fifth carbon.

This results in a transition state which is a cyclic arrangement of six atoms.

This reduces the randomness of the transition state as compared to the open chain polymer.

During this process, a primary free radical is converted to a more stable secondary free radical.

This step is exothermic since products of this step are more stable than the reactants.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 28.2 - Prob. 1P Ch. 28.3 - Prob. 2P Ch. 28.3 - Prob. 3P Ch. 28.4 - Prob. 4P Ch. 28.7 - Problem 28.5 (a) Write a chemical equation for the...Ch. 28.7 - Prob. 6P Ch. 28.8 - Prob. 7P Ch. 28.9 - Problem 28.8 How will the average chain length of...Ch. 28.9 - Prob. 9P Ch. 28.11 - Prob. 10P

Solution Summary: The author explains that branches shorter or longer than four carbons are found infrequently in polyethylene.

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