Exhibit 31-3 Classify Each Polymer Below as Step-Growth or Chain-Growth.20. ANSWER

question 7

Multiple Choice

Exhibit 31-3
Classify each polymer below as step-growth or chain-growth.20. ANSWER:
chain-growth
POINTS:
1
21. ANSWER:
chain-growth
POINTS:
1
22. ANSWER:
step-growth
POINTS:
1
23. ANSWER:
step-growth
POINTS:
1
Exhibit 31-4
Draw the structure of the polymers obtained from the following reactions.
24. ANSWER: POINTS:
1
25. ANSWER: POINTS:
1
26. ANSWER: POINTS:
1
27. ANSWER: POINTS:
1
28. ANSWER: POINTS:
1
-Monomer A is copolymerized with Monomer B and is found to have the following structure: -(-A-B-B-B-A-B-A-B-A-A-B-A-A-) -
The type of copolymer formed is:

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

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