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Identify the type of polymer for nylon 66.


A) homopolymer
B) graft copolymer
C) random copolymer
D) block copolymer
E) alternating copolymer

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

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Give the product for an diisocyanate reacting with a diol.


A) an epoxy resin
B) a polyester
C) a polycarbonate
D) a polyamide
E) a polyurethane

F) A) and E)
G) A) and B)

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Which of the following is a step-growth polymer?


A) polyethylene
B) polyester
C) polypropylene
D) polystyrene
E) Plexiglass

F) C) and D)
G) A) and C)

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Which of the following is the chain-initiating step in the cationic polymerization of propene? Which of the following is the chain-initiating step in the cationic polymerization of propene?   A) I B) II C) III D) IV E) V


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

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

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Which of the following can result in chain termination in cationic polymerization?


A) loss of H+
B) addition of a nucleophile that reacts with the propagating site
C) a chain transfer reaction with the solvent
D) a 1,2-hydride shift.
E) A, B, and C

F) All of the above
G) D) and E)

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The pattern below is found in what type of polymer? AABBBABAABABBAAB


A) an alternating copolymer
B) a block copolymer
C) a random copolymer
D) a graft copolymer
E) a homopolymer

F) A) and B)
G) A) and C)

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