(a)
The repeat unit structure for polychlorotrifluoroethylene polymer.
(a)

Answer to Problem 1QP
Explanation of Solution
Polychlorotrifluoroethylene polymer consists of one chlorine atom, three fluorine atoms and two carbon atoms.
The formula of ethylene is
Total electrons of outermost orbit in Chlorine and Fluorine is
Therefore, the structure of repeat unit is,
Figure I
Conclusion:
The repeat unit of polychlorotrifluoroethylene polymer is shown in Figure I.
(b)
The repeat unit structure for poly(vinyl alcohol) polymer.
(b)

Answer to Problem 1QP
Explanation of Solution
Poly(vinyl alcohol) polymer consists of one hydroxyl group; three hydrogen atoms and two carbon atoms.
The formula of ethylene is
Total electrons of outermost orbit in oxygen, hydrogen and carbon atoms are
Therefore, the structure of repeat unit is,
Figure II
Conclusion:
The repeat unit of poly(vinyl alcohol polymer is shown in Figure II
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Chapter 4 Solutions
EBK FUNDAMENTALS OF MATERIALS SCIENCE A
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