098 CHAPTER 28 Synthetic Polymers
Problems
- Draw short segments of the polymers obtained from the following monomers:
a. d.
b. e.
c.
For each polymer, indicate whether the polymerization is a chain-growth or a step-growth polymerization.
- Draw the repeating unit of the step-growth polymer that will be formed from each of the following reactions:
a.
b.
c.
d.
- Draw the structure of the monomer or monomers used to synthesize the following polymers:
a. e.
b. f.
c. g.
d. h.
For each polymer, indicate whether it is a chain-growth polymer or a step-growth polymer.
- Explain why the configuration of a polymer of isobutylene is not isotactic, syndiotactic, or atactic.
O O
CH 2 CH C COCH 2 CH 2 O
N
CH 2 C
CH 3
SO 2 SO 2 NH(CH 2 ) 6 NH
CH 2 CH 2 CH 2 CH 2 CO
O
CH 3
CH 2 CHO
CH 2 C CHCH 2
CH 3
CH 2 CH 3
CH 2 CH
OO+ (C 6 H 5 ) 3 P CH CH P(C 6 H 5 ) 3
O O
H 2 N OCH 2 CH 2 CH 2 ONH 2 + HC CH
CH 3
CH 3
C
CH 3
CH 3
Cl CCl+ HO CH 2 OH
BF 3
ClCH 2 CH 2 OCH 2 CH 2 Cl + HN NH
O
HO(CH 2 ) 5 COH
CH 3
OCN
CH 2 “CHCO 2 H NCO + HOCH 2 CH 2 OH
O O
CH 2 “CHF ClC(CH 2 ) 5 CCl + H 2 N(CH 2 ) 5 NH 2