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Organic Chemistry, 9e (Wade)
Chapter 26 Synthetic Polymers
1) ________ polymers result from rapid reaction of one molecule at a time with a growing
polymer chain, usually with a reactive intermediate at the growing end of the chain.
A) Addition
B) Condensation
C) Step-growth
D) Amorphous
Answer: A
Diff: 1
Section: 26.1
LO: 26.1
2) ________ polymers result from polymerization reactions in which chain growth is
accompanied by loss of a small molecule.
A) Addition
B) Condensation
C) Chain-growth
D) Latex
Answer: B
Diff: 1
Section: 26.1
LO: 26.1
3) The monomer shown below, 1,1-bistrifluoromethylethylene, undergoes polymerization via:
A) anionic polymerization
B) cationic polymerization
C) radical polymerization
D) chain-growth polymerization
Answer: A
Diff: 1
Section: 26.2
LO: 26.3
GO: G5
1
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,4) Which of the following is the best initiator for a free-radical polymerization?
A) BuLi
B) PhOH
C) (PhCO2)2
D) CH3CH(OCH3)2
E) BF3
Answer: C
Diff: 1
Section: 26.2
LO: 26.3
5) Which of the following is the best initiator for a cationic polymerization?
A) BuLi
B) PhOH
C) (PhCO2)2
D) CH3CH(OCH3)2
E) BF3
Answer: E
Diff: 1
Section: 26.2
LO: 26.3
6) Which of the following is the best initiator for an anionic polymerization?
A) BuLi
B) PhOH
C) (PhCO2)2
D) CH3CH(OCH3)2
E) BF3
Answer: A
Diff: 1
Section: 26.2
LO: 26.3
7) Provide the structure of the monomer from which polypropylene is formed.
Answer: H2C CHCH3
Diff: 1
Section: 26.2
LO: 26.1
2
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,8) Plexiglas is a:
A) polyamide.
B) polyester.
C) polycarbonate.
D) polyurethane.
E) none of the above
Answer: E
Diff: 1
Section: 26.2
9) From which of the following are water pipes commonly manufactured?
A) poly(methyl α-cyanoacrylate)
B) polyurethane
C) poly(acrylonitrile)
D) poly(vinyl chloride)
E) poly(isobutylene)
Answer: D
Diff: 1
Section: 26.2
10) What is the carbon : hydrogen mole ratio in polyethylene?
A) 12:1
B) 1:2
C) 1:3
D) 3:2
E) 1:100
Answer: B
Diff: 2
Section: 26.2
11) "Super" glues are typically composed of what polymer?
A) poly(acrylonitrile)
B) poly(methyl α-cyanoacrylate)
C) polystyrene
D) polypropylene
E) poly(methyl α-methylacrylate)
Answer: B
Diff: 2
Section: 26.2
3
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, 12) Is the polymer shown an addition polymer or a condensation polymer?
Answer: addition polymer
Diff: 2
Section: 26.2
LO: 26.1
13) Ethylene oxide can be polymerized to form Carbowax. What conditions are best for the
polymerization of ethylene oxide?
A) anionic
B) cationic
C) free-radical
D) carbene
E) none of the above
Answer: A
Diff: 2
Section: 26.2
LO: 26.3
14) Which of the following is not an addition polymer?
A) polyethylene
B) Orlon
C) Plexiglas
D) Kevlar
E) Teflon
Answer: D
Diff: 2
Section: 26.2
LO: 26.1
15) Which of the following monomers is most well-suited to cationic polymerization?
A) isobutylene
B) ethylene
C) acrylonitrile
D) methyl α-methacrylate
E) methyl α-cyanoacrylate
Answer: A
Diff: 2
Section: 26.2
LO: 26.3
4
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