Organic Chemistry
Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
Question
Book Icon
Chapter 31.SE, Problem 19MP
Interpretation Introduction

a)

Interpretation:

Show the mechanism of the formation of dicyclopentadiene from cyclopentadiene, draw the representative unit of the polymer containing three monomer units and draw the structure of PDCPD.

Concept introduction:

In this process, the addition polymerization takes place. Addition polymerization is also known as chain growth polymerization.

In this process, an initiator is added to the reaction mixture. This initiator gets added to the carbon-carbon double bond and yields a reactive monomer (intermediate). This reactive intermediate reacts with the monomer and this process keeps on repeating to give rise to the final polymeric product.

The formation of PDCPD is taking place by ROMP (ring opening metathesis polymerization), an olefin metathesis reaction can be stated as the reaction between two molecules (alkenes) by exchanging their substituents on their double bonds.

The catalyst used for olefin metathesis polymerization is Grubb’s catalyst (it contain a carbon-metal double bond and have a genral structure as M=CH-R. The function of Grubb’s catalyst is to react reversibly with an alkene to form a four membered cyclic compound knowa as metallacycle. Here, “M” is Ru i.e. ruthenium.

Metallacycle opens up in the next step to give rise to different alkene and a different catalyst.

Interpretation Introduction

b)

Interpretation:

Show the mechanism of the formation of dicyclopentadiene from cyclopentadiene, draw the representative unit of the polymer containing three monomer units and draw the structure of PDCPD.

Concept introduction:

In this process, the addition polymerization takes place. Addition polymerization is also known as chain growth polymerization.

In this process, an initiator is added to the reaction mixture. This initiator gets added to the carbon-carbon double bond and yields a reactive monomer (intermediate). This reactive intermediate reacts with the monomer and this process keeps on repeating to give rise to the final polymeric product.

The formation of PDCPD is taking place by ROMP (ring opening metathesis polymerization), an olefin metathesis reaction can be stated as the reaction between two molecules (alkenes) by exchanging their substituents on their double bonds.

The catalyst used for olefin metathesis polymerization is Grubb’s catalyst (it contain a carbon-metal double bond and have a genral structure as M=CH-R. The function of Grubb’s catalyst is to react reversibly with an alkene to form a four membered cyclic compound knowa as metallacycle. Here, “M” is Ru i.e. ruthenium.

Metallacycle opens up in the next step to give rise to different alkene and a different catalyst.

Interpretation Introduction

c)

Interpretation:

Show the mechanism of the formation of dicyclopentadiene from cyclopentadiene, draw the representative unit of the polymer containing three monomer units and draw the structure of PDCPD.

Concept introduction:

In this process, the addition polymerization takes place. Addition polymerization is also known as chain growth polymerization.

In this process, an initiator is added to the reaction mixture. This initiator gets added to the carbon-carbon double bond and yields a reactive monomer (intermediate). This reactive intermediate reacts with the monomer and this process keeps on repeating to give rise to the final polymeric product.

The formation of PDCPD is taking place by ROMP (ring opening metathesis polymerization), an olefin metathesis reaction can be stated as the reaction between two molecules (alkenes) by exchanging their substituents on their double bonds.

The catalyst used for olefin metathesis polymerization is Grubb’s catalyst (it contain a carbon-metal double bond and have a genral structure as M=CH-R. The function of Grubb’s catalyst is to react reversibly with an alkene to form a four membered cyclic compound knowa as metallacycle. Here, “M” is Ru i.e. ruthenium.

Metallacycle opens up in the next step to give rise to different alkene and a different catalyst.

Blurred answer
Students have asked these similar questions
Explain why a random copolymer is obtained when 3,3-dimethyl-1-butene undergoes cationic polymerization.
Predict the order of reactivity (and justify your prediction) of the given monomers. Styrene, 2-vinylpyridine, 3-vinylpyridine, and 4-vinyl pyridine in anionic polymerization. Styrene, p-methoxystyrene, p-chlorostyrene, and p-methylstyrene in cationic polymerization.
Draw the structure of the polymer that results from anionic polymerization of p-trichloromethylstyrene (CCl3C6H4CH =CH2) using ethylene oxide as the electrophile to terminate the chain.
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
Organic Chemistry
Chemistry
ISBN:9781305080485
Author:John E. McMurry
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Text book image
EBK A SMALL SCALE APPROACH TO ORGANIC L
Chemistry
ISBN:9781305446021
Author:Lampman
Publisher:CENGAGE LEARNING - CONSIGNMENT
Text book image
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning