Chapter 5
Amorphous and Semi-crystalline Materials
Learning Objectives
After careful study of this chapter, you should be able to do the following:
1. a. Explain why and under what conditions certain materials fail to form completely crystalline structures.
b. Also explain how one would determine whether a material was crystalline, amorphous, or semi-crystalline.
2. Describe the typical structure of a silica-based glass and explain the role of the silica (SiO2) and common additions such as CaO and Na2O, and of TiO2 and Al2O3.
3. Describe the two general types of reactions by which polymerization occurs.
4. a. Describe and give examples of each of the following characteristics of a polymer.
Molecular shape
Molecular structure
Molecular ...
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