Question 1

Which of the following monomer(s) are used to prepare the polymer Bakelite?

Accepted Answer

A)  phenol & acetaldyde 
B)  phenol & formaldehyde 
C)  phenol & methanol 
D)  thermoplastics 
E)  none of these 
A)  phenol & acetaldyde 
B)  phenol & formaldehyde 
C)  phenol & methanol 
D)  thermoplastics 
E)  none of these

Question 2

Which one of the following is the best classification of crystalline polymers with high tensile strength?

Accepted Answer

A)  fibers 
B)  elastomers 
C)  plasticizers 
D)  thermoplastics 
E)  thermosetting resins 
A)  fibers 
B)  elastomers 
C)  plasticizers 
D)  thermoplastics 
E)  thermosetting resins

Question 3

Provide the structure of a region of the polymer that is produced when phosgene is treated with 3,3-dimethyl-1,5-pentanediol.

Accepted Answer

The answer of Provide the structure of a region of...

Question 4

Which of the following is used as an initiator in radical polymerization?

Accepted Answer

A)  BF3, H2O 
B)  CH3CH2CH2CH2Li 
C)  ROOR 
D)  NaOH 
E)  none of these 
A)  BF3, H2O 
B)  CH3CH2CH2CH2Li 
C)  ROOR 
D)  NaOH 
E)  none of these

Question 5

Which of the following elements is used during vulcanization of rubber?

Accepted Answer

A)  silicon 
B)  aluminum 
C)  sulfur 
D)  phosphorous 
E)  none of these 
A)  silicon 
B)  aluminum 
C)  sulfur 
D)  phosphorous 
E)  none of these

Question 6

Which of the following best describes crystallites?

Accepted Answer

A)  crossed linked chains with disulfide bridges 
B)  linearly arranged chains held together by van der Waals forces 
C)  crossed linked chains held together by van der Waals forces 
D)  linearly arranged chains with disulfide bridges 
E)  none of these 
A)  crossed linked chains with disulfide bridges 
B)  linearly arranged chains held together by van der Waals forces 
C)  crossed linked chains held together by van der Waals forces 
D)  linearly arranged chains with disulfide bridges 
E)  none of these

Question 7

Arrange the following monomers in decreasing order of reactivity towards anionic polymerization?

Accepted Answer

A)  I>III>II 
B)  II>I>III 
C)  III>II>I 
D)  II>III>I 
E)  III>I>II 
A)  I>III>II 
B)  II>I>III 
C)  III>II>I 
D)  II>III>I 
E)  III>I>II

Question 8

Provide the structure of monomer(s) that would produce the following condensation polymer.

Accepted Answer

The answer of Provide the structure of monomer(s) that would...

Question 9

Which of the following monomer(s) would undergo cationic polymerization?

Accepted Answer

A)  vinylidene fluoride 
B)  acrylonitrile 
C)  isobutylene 
D)  vinyl acetate 
E)  all of these 
A)  vinylidene fluoride 
B)  acrylonitrile 
C)  isobutylene 
D)  vinyl acetate 
E)  all of these

Question 10

Which of the following polymers would be best prepared using cationic polymerization?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 11

Provide a structure of a region of a random copolymer constructed from ethylene and styrene.

Accepted Answer

The answer of Provide a structure of a region of...

Question 12

Which one of the following is the best classification of an amorphous polymer that is flexible?

Accepted Answer

A)  fibers 
B)  elastomers 
C)  plasticizers 
D)  thermoplastics 
E)  thermosetting resins 
A)  fibers 
B)  elastomers 
C)  plasticizers 
D)  thermoplastics 
E)  thermosetting resins

Question 13

Which of the following is a region of a random copolymer constructed from isobutylene and vinyl fluoride?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 14

Polymerization of ethylene in the presence of a Ziegler-Natta catalyst results in _______.

Accepted Answer

A)  LDPE 
B)  MDPE 
C)  HDPE 
D)  B & C 
E)  none of these 
A)  LDPE 
B)  MDPE 
C)  HDPE 
D)  B & C 
E)  none of these

Question 15

Provide the monomer(s) that would produce the following polymer?

Accepted Answer

The answer of Provide the monomer(s) that would produce the...

Question 16

Draw a possible segment of syndiotactic polyacrylonitrile.

Accepted Answer

The answer of Draw a possible segment of syndiotactic polyacrylonitrile....

Question 17

Which of the following descriptions is/are consistent with biodegradable polymers?

Accepted Answer

A)  polymers that can be broken down by enzymes produced by microorganisms 
B)  polymers with ester moieties 
C)  polymers with amide moieties 
D)  polymers known as polyhydroxyalkanoates 
E)  all of these 
A)  polymers that can be broken down by enzymes produced by microorganisms 
B)  polymers with ester moieties 
C)  polymers with amide moieties 
D)  polymers known as polyhydroxyalkanoates 
E)  all of these

Question 18

Provide a structure of a region of an alternating copolymer constructed from propylene and acrylonitrile.

Accepted Answer

The answer of Provide a structure of a region of...

Question 19

Which of the following statements is (are) true about linear polymers?

Accepted Answer

A)  they are highly branched 
B)  they may be slightly branched 
C)  they can have no branching 
D)  A & B 
E)  B & C 
A)  they are highly branched 
B)  they may be slightly branched 
C)  they can have no branching 
D)  A & B 
E)  B & C

Question 20

Which of the following polymerization processes best describes formation of polycarbonates?

Accepted Answer

A)  step growth addition 
B)  chain growth addition 
C)  step growth condensation 
D)  chain growth condensation 
E)  none of these 
A)  step growth addition 
B)  chain growth addition 
C)  step growth condensation 
D)  chain growth condensation 
E)  none of these

Exam 27: Synthetic Polymers

Which of the following monomer(s) are used to prepare the polymer Bakelite?

Which one of the following is the best classification of crystalline polymers with high tensile strength?

Provide the structure of a region of the polymer that is produced when phosgene is treated with 3,3-dimethyl-1,5-pentanediol.

Which of the following is used as an initiator in radical polymerization?

Which of the following elements is used during vulcanization of rubber?

Which of the following best describes crystallites?

Arrange the following monomers in decreasing order of reactivity towards anionic polymerization?

Provide the structure of monomer(s) that would produce the following condensation polymer.

Which of the following monomer(s) would undergo cationic polymerization?

Which of the following polymers would be best prepared using cationic polymerization?

Provide a structure of a region of a random copolymer constructed from ethylene and styrene.

Which one of the following is the best classification of an amorphous polymer that is flexible?

Which of the following is a region of a random copolymer constructed from isobutylene and vinyl fluoride?

Polymerization of ethylene in the presence of a Ziegler-Natta catalyst results in _______.

Provide the monomer(s) that would produce the following polymer?

Draw a possible segment of syndiotactic polyacrylonitrile.

Which of the following descriptions is/are consistent with biodegradable polymers?

Provide a structure of a region of an alternating copolymer constructed from propylene and acrylonitrile.

Which of the following statements is (are) true about linear polymers?

Which of the following polymerization processes best describes formation of polycarbonates?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Substitution Reactions

Alkenes: Structure and Preparation Via Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

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