Filters
Question type

Study Flashcards

What type of intermediate is formed in the polymerization of styrene with AIBN?


A) carbocation
B) carbanion
C) radical
D) organometallic complex

E) A) and B)
F) A) and D)

Correct Answer

verifed

verified

The name of the polymer formed by the molecule shown below is _________________. The name of the polymer formed by the molecule shown below is _________________.

Correct Answer

verifed

verified

Which of the following combinations of terms best describes the polymerization of propene to form polypropylene?


A) step growth addition
B) step growth condensation
C) chain growth addition
D) chain growth condensation

E) None of the above
F) A) and B)

Correct Answer

verifed

verified

What type of polymer is shown? What type of polymer is shown?   A) polyamide B) polyurea C) polyurethane D) polyamine


A) polyamide
B) polyurea
C) polyurethane
D) polyamine

E) B) and C)
F) A) and D)

Correct Answer

verifed

verified

The following is an example of a polyurethane. The following is an example of a polyurethane.

A) True
B) False

Correct Answer

verifed

verified

Provide the structure of the poly(lactic acid) that is formed by base catalyzed ring opening polymerization of the dilactone shown below. Provide the structure of the poly(lactic acid) that is formed by base catalyzed ring opening polymerization of the dilactone shown below.

Correct Answer

verifed

verified

Which type of polymerization is used to make high density polyethylene (HDPE) ?


A) anionic
B) cationic
C) radical
D) Ziegler-Natta

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

Which type of polymerization is initiated by a mixture of naphthalene and sodium metal?


A) anionic
B) cationic
C) radical
D) Ziegler-Natta

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

A polymer has the repeating unit drawn below: A polymer has the repeating unit drawn below:   The two monomers used to make the polymer are shown below.  The two monomers used to make the polymer are shown below. A polymer has the repeating unit drawn below:   The two monomers used to make the polymer are shown below.

A) True
B) False

Correct Answer

verifed

verified

What type of polymer is shown? What type of polymer is shown?   A) polyamide B) polyurea C) polyurethane D) polyamine


A) polyamide
B) polyurea
C) polyurethane
D) polyamine

E) A) and D)
F) A) and C)

Correct Answer

verifed

verified

Provide the mechanism for backbiting of a radical chain end of polyethylene, which results in a butyl side chain on the polymer backbone.

Correct Answer

verifed

verified

Which of the following combinations of terms best describes the polymerization of a diol and a diacid to form a polyester?


A) step growth addition
B) step growth condensation
C) chain growth addition
D) chain growth condensation

E) C) and D)
F) B) and D)

Correct Answer

verifed

verified

Provide the mechanism whereby two radical chain ends undergo dispropotionation to give two dead chain ends. Provide the mechanism whereby two radical chain ends undergo dispropotionation to give two dead chain ends.

Correct Answer

verifed

verified

Provide the structure of poly(methyl methacrylate).

Correct Answer

verifed

verified

Consider the structure shown below. Consider the structure shown below.   This is an example of  a. a polyurethane b. a polyester c. a polyamide d. a polycarbonate This is an example of a. a polyurethane b. a polyester c. a polyamide d. a polycarbonate

Correct Answer

verifed

verified

A good initiator for a free radical addition polymerization is acetyl chloride.

A) True
B) False

Correct Answer

verifed

verified

MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes. -____ A polyurethane


A) crystallite
B) elastomer
C) chain-growth polymer
D) Al(CH2CH3) 3 + TiCl4
E) MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes. -____ A polyurethane A) crystallite B) elastomer C) chain-growth polymer D) Al(CH<sub>2</sub>CH<sub>3</sub>) <sub>3</sub> + TiCl<sub>4</sub> E)   F)   G) thermoplastic H) homopolymer I) T<sub>m</sub> J) epoxy resins K) copolymers L) step-growth polymer M)  catalyst  N) T<sub>g</sub> O)   P)
F) MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes. -____ A polyurethane A) crystallite B) elastomer C) chain-growth polymer D) Al(CH<sub>2</sub>CH<sub>3</sub>) <sub>3</sub> + TiCl<sub>4</sub> E)   F)   G) thermoplastic H) homopolymer I) T<sub>m</sub> J) epoxy resins K) copolymers L) step-growth polymer M)  catalyst  N) T<sub>g</sub> O)   P)
G) thermoplastic
H) homopolymer
I) Tm
J) epoxy resins
K) copolymers
L) step-growth polymer
M) "catalyst"
N) Tg
O) MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes. -____ A polyurethane A) crystallite B) elastomer C) chain-growth polymer D) Al(CH<sub>2</sub>CH<sub>3</sub>) <sub>3</sub> + TiCl<sub>4</sub> E)   F)   G) thermoplastic H) homopolymer I) T<sub>m</sub> J) epoxy resins K) copolymers L) step-growth polymer M)  catalyst  N) T<sub>g</sub> O)   P)
P) MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes. -____ A polyurethane A) crystallite B) elastomer C) chain-growth polymer D) Al(CH<sub>2</sub>CH<sub>3</sub>) <sub>3</sub> + TiCl<sub>4</sub> E)   F)   G) thermoplastic H) homopolymer I) T<sub>m</sub> J) epoxy resins K) copolymers L) step-growth polymer M)  catalyst  N) T<sub>g</sub> O)   P)

Q) M) and O)
R) A) and G)

Correct Answer

verifed

verified

What is the name of the following polymer? What is the name of the following polymer?   A) poly(ethylene terephthalamide)  B) poly(ethylene terephthalate)  C) poly(ethylene succinate)  D) poly(ethylene phenylate)


A) poly(ethylene terephthalamide)
B) poly(ethylene terephthalate)
C) poly(ethylene succinate)
D) poly(ethylene phenylate)

E) A) and B)
F) All of the above

Correct Answer

verifed

verified

High degrees of crystallinity are associated with polymers with weak intermolecular forces.

A) True
B) False

Correct Answer

verifed

verified

Consider the following two structures. Consider the following two structures.   The following represents the repeating unit of the polymer formed by these two substances.  The following represents the repeating unit of the polymer formed by these two substances. Consider the following two structures.   The following represents the repeating unit of the polymer formed by these two substances.

A) True
B) False

Correct Answer

verifed

verified

Showing 41 - 60 of 60

Related Exams

Show Answer