Q. Basic type of Polymer?

Polymer can be divided into three broad divisions: plastics, fibers, and elastomers. Synthetic resins are usually referred to as plastics. Plastic derive their name from the fact that in a certain phase of their manufacture, they are present in a plastic stage (that is, acquire plasticity), which makes it possible to impart any desire shape to the product. Plastics fall into a category known chemically as high polymers.

Thus, "plastics" is a term applied to compositions consisting of a mixture of high molecular compounds (synthetic polymers) and fillers, plasticizers, stains and pigments, lubricating and other substances. Some of the plastic can contain nothing but resin (for instance, polyethylene, polystyrene).