Question 1

Show the mechanism for the formation of a segment of polystyrene containing two molecules of styrene and initiated by hydrogen peroxide.

Accepted Answer

The answer of Show the mechanism for the formation of...

Question 2

Chain-growth polymerization exhibits a marked preference for

Accepted Answer

A)  tail-to-tail addition
B)  head-to-head addition
C)  head-to-tail addition
D)  head-to-middle addition
E)  middle-to-tail additionF) B) and E)
G) B) and C)

Question 3

Which of the following polymers is arranged in an isotactic configuration?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) None of the above
G) C) and E)

Question 4

Identify the monomer(s) that undergo cationic polymerization.You may choose more than one answer.

Accepted Answer

A)  styrene
B)  methyl methacrylate
C)  vinyl chloride
D)  methyl vinyl ether
E)  acrylamideF) D) and E)
G) C) and D)

Question 5

Which of the following species can best serve as an initiator for anionic polymerization?

Accepted Answer

A)  CH3CH2CH2CH2Li
B)  BF3
C)  HOOH
D)  CH3CH2CH2CH2OH
E)  CH3CH2CH2CH2OCH2CH2CH2CH3F) A) and D)
G) B) and D)

Question 6

What are elastomers?

Accepted Answer

A)  elastic organic molecules that are added to polymers to make them harder
B)  plastics that stretch and then revert to their original shape
C)  polymers that are soft and sticky
D)  plastics that are hard and brittle
E)  elastic molecules that are added to polymers to make them stretch moreF) A) and D)
G) A) and C)

Question 7

Which of the following statements best describes what alpha olefins are?

Accepted Answer

A)  polysubstituted ethylenes
B)  monosubstituted ethylenes
C)  disubstituted ethylenes
D)  ethylenes
E)  isoprenesF) All of the above
G) A) and D)

Question 8

Which of the following species can best serve as a radical initiator for radical polymerization?

Accepted Answer

A)  ROH
B)  ROR
C)  ROOR
D)  RCOOR
E)  RCOOHF) D) and E)
G) C) and D)

Question 9

Which of the following is the chain-initiating step in the cationic polymerization of propene?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) B) and C)
G) A) and E)

Question 10

Draw the structure of the polymer that results when methyl α-cyanoacrylate undergoes polymerization.By what name is this polymer commonly known?

Accepted Answer

This polym...

Question 11

Is acrylonitrile more likely to undergo anionic or cationic polymerization? Explain your answer.

Accepted Answer

Acrylonitrile is more likely t...

Question 12

What monomers formed the following polymer?

Accepted Answer

A)  I
B)  II
C)  III
D)  IV
E)  VF) C) and D)
G) A) and D)

Question 13

Which of the following is more likely to form non-terminated polymeric chains called living polymers?

Accepted Answer

A)  cationic polymerization
B)  free radical polymerization
C)  anionic polymerization
D)  A and B
E)  A and CF) C) and D)
G) B) and C)

Question 14

In a recycling symbol,the ________ the number in the middle of the symbol,the more easily the compound can be recycled.

Accepted Answer

The answer of In a recycling symbol,the ________ the number...

Question 15

Name the monomer used in the production of neoprene.

Accepted Answer

2-chloro-1...

Question 16

Vulcanization involves crosslinking of polymer chains through

Accepted Answer

A)  disulfide bonds
B)  amide bonds
C)  ester bonds
D)  double bonds
E)  manual twistingF) A) and D)
G) A) and E)

Question 17

Draw the structure of the polymer produced in the following reaction.

Accepted Answer

The answer of Draw the structure of the polymer produced...

Question 18

The choice of mechanism in chain-growth polymerization depends on which of the following?

Accepted Answer

A)  structure of the monomer and initiator used
B)  structure of the polymer and initiator used
C)  temperature and pressure of the reaction
D)  A and B
E)  A,B,and CF) A) and B)
G) A) and C)

Question 19

Give the purpose of the amine in the formation of the epoxy resin.

Accepted Answer

A)  a softener
B)  hardener
C)  a monomer in the reaction
D)  to dehydrate the monomer
E)  to chill the polymerF) C) and D)
G) A) and E)

Question 20

Chain-growth polymerization proceeds by which of the following mechanisms?

Accepted Answer

A)  radical polymerization
B)  cationic polymerization
C)  anionic polymerization
D)  A and B
E)  A,B,and CF) A) and B)
G) All of the above

Exam 27: Synthetic Polymers

Is acrylonitrile more likely to undergo anionic or cationic polymerization? Explain your answer.

Correct AnswerverifiedAcrylonitrile is more likely t...View AnswerShow Answer

Give the purpose of the amine in the formation of the epoxy resin.

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Draw the structure of the polymer that results when methyl α-cyanoacrylate undergoes polymerization.By what name is this polymer commonly known?

Correct AnswerverifiedThis polym...View AnswerShow Answer

Chain-growth polymerization proceeds by which of the following mechanisms?

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In a recycling symbol,the ________ the number in the middle of the symbol,the more easily the compound can be recycled.

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Which of the following statements best describes what alpha olefins are?

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What monomers formed the following polymer?

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Name the monomer used in the production of neoprene.

Correct Answerverified2-chloro-1...View AnswerShow Answer

Which of the following species can best serve as an initiator for anionic polymerization?

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Draw the structure of the polymer produced in the following reaction.

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Vulcanization involves crosslinking of polymer chains through

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Which of the following is the chain-initiating step in the cationic polymerization of propene?

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Which of the following polymers is arranged in an isotactic configuration?

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Identify the monomer(s) that undergo cationic polymerization.You may choose more than one answer.

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Show the mechanism for the formation of a segment of polystyrene containing two molecules of styrene and initiated by hydrogen peroxide.

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Which of the following is more likely to form non-terminated polymeric chains called living polymers?

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What are elastomers?

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Which of the following species can best serve as a radical initiator for radical polymerization?

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Chain-growth polymerization exhibits a marked preference for

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The choice of mechanism in chain-growth polymerization depends on which of the following?

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Acrylonitrile is more likely t...
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This polym...
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2-chloro-1...
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