Question 1

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 2

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

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 A

Question 3

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

Accepted Answer

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

Question 4

Polymers constructed from a single type of monomer are called_______, where as those constructed from two or more different types of monomers are called________.

Accepted Answer

A)  copolymers, homopolymers 
B)  homopolymers, copolymers 
C)  block polymers, homopolymers 
D)  homopolymers, block polymers 
E)  copolymers, block polymers 
A)  copolymers, homopolymers 
B)  homopolymers, copolymers 
C)  block polymers, homopolymers 
D)  homopolymers, block polymers 
E)  copolymers, block polymers

Question 5

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

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

Question 6

Which of the following monomers would be most reactive towards cationic polymerization?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 7

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

Accepted Answer

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

Question 8

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

Accepted Answer

A)  BF3, H2O 
B)  CH3CH2CH2CH2Li 
C)  ROOR 
D)  H2SO4 
E)  none of these 
A)  BF3, H2O 
B)  CH3CH2CH2CH2Li 
C)  ROOR 
D)  H2SO4 
E)  none of these

Question 9

An atactic polymer has a _______ configuration.

Accepted Answer

A)  random 
B)  alternating 
C)  same 
D)  block 
E)  graft 
A)  random 
B)  alternating 
C)  same 
D)  block 
E)  graft

Question 10

Identify the polymer that is used in bicycle helmets.

Accepted Answer

A)  Nylon 6 
B)  Teflon 
C)  Kevlar 
D)  Lexan 
E)  Nylon 6,6 
A)  Nylon 6 
B)  Teflon 
C)  Kevlar 
D)  Lexan 
E)  Nylon 6,6

Question 11

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 12

Identify the polymer that is used in rope.

Accepted Answer

A)  Nylon 6 
B)  Teflon 
C)  Kevlar 
D)  Lexan 
E)  Nylon 6,6 
A)  Nylon 6 
B)  Teflon 
C)  Kevlar 
D)  Lexan 
E)  Nylon 6,6

Question 13

What is the classification of the following polymer?

Accepted Answer

A)  polyester 
B)  polyamide 
C)  polyurethane 
D)  polycarbonate 
E)  none of these 
A)  polyester 
B)  polyamide 
C)  polyurethane 
D)  polycarbonate 
E)  none of these

Question 14

Draw a possible segment of syndiotactic polyacrylonitrile.

Accepted Answer

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

Question 15

Which of the following types of polyethylene is used to make tupperware?

Accepted Answer

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

Question 16

Addition of _____ to thermoplastics increases flexibility of the polymer.

Accepted Answer

A)  PVC 
B)  plasticizers 
C)  resins 
D)  LDPE 
E)  elastomers 
A)  PVC 
B)  plasticizers 
C)  resins 
D)  LDPE 
E)  elastomers

Question 17

Which of the following polymers are classified as thermoplastics?

Accepted Answer

A)  PVC 
B)  PET 
C)  LDPE 
D)  HDPE 
E)  all of these 
A)  PVC 
B)  PET 
C)  LDPE 
D)  HDPE 
E)  all of these

Question 18

Provide the structure of a region of a block copolymer constructed from isobutylene and vinyl fluoride.

Accepted Answer

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

Question 19

What is not an example of a small molecule that is released in a condensation reaction?

Accepted Answer

A)  water 
B)  carbon dioxide 
C)  nitrogen gas 
D)  benzene 
A)  water 
B)  carbon dioxide 
C)  nitrogen gas 
D)  benzene

Question 20

The melt transition temperature (Tm), is the temperature at which the ________ regions of the polymers become ________.

Accepted Answer

A)  crystalline, amorphous 
B)  amorphous, hard 
C)  crystalline, hard 
D)  non-crystalline, soft 
E)  none of these 
A)  crystalline, amorphous 
B)  amorphous, hard 
C)  crystalline, hard 
D)  non-crystalline, soft 
E)  none of these

Exam 27: Synthetic Polymers

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

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

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

Polymers constructed from a single type of monomer are called_______, where as those constructed from two or more different types of monomers are called________.

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

Which of the following monomers would be most reactive towards cationic polymerization?

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

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

An atactic polymer has a _______ configuration.

Identify the polymer that is used in bicycle helmets.

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

Identify the polymer that is used in rope.

What is the classification of the following polymer?

Draw a possible segment of syndiotactic polyacrylonitrile.

Which of the following types of polyethylene is used to make tupperware?

Addition of _____ to thermoplastics increases flexibility of the polymer.

Which of the following polymers are classified as thermoplastics?

Provide the structure of a region of a block copolymer constructed from isobutylene and vinyl fluoride.

What is not an example of a small molecule that is released in a condensation reaction?

The melt transition temperature (Tm), is the temperature at which the ________ regions of the polymers become ________.

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

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and 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

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Filters

Polymers constructed from a single type of monomer are called_, where as those constructed from two or more different types of monomers are called__.

The melt transition temperature (T_m), is the temperature at which the regions of the polymers become .