Author Question: Classify each polymer below as step-growth or chain-growth. ... (Read 135 times)

jon_i · **on:** Aug 23, 2018

Classify each polymer below as step-growth or chain-growth.

Question 2

Draw the structure(s) of the monomer(s) used to make each of the following polymers.

Question 3

Draw the structure(s) of the monomer(s) used to make each of the following polymers.

Question 4

Draw the structure(s) of the monomer(s) used to make each of the following polymers.

Question 5

Draw the structure(s) of the monomer(s) used to make each of the following polymers.
Draw:

Question 6

Monomer A is copolymerized with Monomer B and is found to have the following structure:

The type of copolymer formed is:

a.
a random copolymer
b.
an alternating copolymer
c.
a block copolymer
d.
a graft copolymer

Question 7

Do you expect nitroethylene to be more or less reactive than ethylene toward anionic polymerization? Explain.

Question 8

Do you expect nitroethylene to be more or less reactive than ethylene toward cationic polymerization? Explain.

Question 9

Rank the following monomers in order of increasing reactivity toward anionic polymerization (least reactive to most reactive).

a.
III, II, IV, I
b.
II, III, I, II
c.
I, IV, III, II
d.
IV, III, II, I

Question 10

Rank the following monomers in order of increasing reactivity toward cationic polymerization (least reactive to most reactive).

a.
III, IV, I, II
b.
II, I, IV, III
c.
I, II, IV, III
d.
IV, III, I, II

Question 11

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.
BF₃ + H₂O
B.
elastomer
C.
chain-growth polymer
D.
AL(CH₂CH₃)₃ + TiCl₄
E.

F.

G.
thermoplastic
H.
homopolymer
I.
plasticizers
J.
thermosetting resins
K.
copolymers
L.
step-growth polymer
M.
Grubbs catalyst
N.
metallacycle
O.

P.

______ four-membered metal containing intermediate

Question 12

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.
BF₃ + H₂O
B.
elastomer
C.
chain-growth polymer
D.
AL(CH₂CH₃)₃ + TiCl₄
E.

F.

G.
thermoplastic
H.
homopolymer
I.
plasticizers
J.
thermosetting resins
K.
copolymers
L.
step-growth polymer
M.
Grubbs catalyst
N.
metallacycle
O.

P.

_____ General structure: M=CHR

Question 13

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.
BF₃ + H₂O
B.
elastomer
C.
chain-growth polymer
D.
AL(CH₂CH₃)₃ + TiCl₄
E.

F.

G.
thermoplastic
H.
homopolymer
I.
plasticizers
J.
thermosetting resins
K.
copolymers
L.
step-growth polymer
M.
Grubbs catalyst
N.
metallacycle
O.

P.

____ a Ziegler-Natta catalyst

Question 14

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.