Now, we can have both polymers of amorphous solids and polymers of crystalline solids. Now, when we melt polymer solids very quickly, we get amorphous solids. When we melt polymers very slowly over a very long range of time, we get crystalline solids. Now, some examples of biopolymers biological polymers include DNA proteins which are basically composed of many amino acids. Macromolecules such as carbohydrates glycogen, for example, starch. All these guys are examples of biological polymers.