Exercises

1. Which would be more flexible: （a） poly（methyl acrylate） or （b） poly（methyl meth-acrylate）? Why?

2. Show examples of polymers whose intermolecular forces are principally （a） London forces （b） dipole-dipole forces （c） hydrogen bonding.

3. What is the difference between the hydrogen bonds in fiber molecules and in globular protein molecules?

References

SEYMOUR R B，CARRAHER C E J. Polymer Chemistry-an Introduction [M]. 2nd ed. New York:Marcel Dekker，Inc.，1988.