If these chains are connected to each other, the polymer is said to be cross-linked. Think of a polymer as a whole bunch of paper clips that have been connected together to form a chain a single paper clip would be the monomer unit, and the long chain would be the polymer. If these paper clip chains were to become connected, they might be thought of as cross-linked. Many items that you are accustom to seeing everyday are polymers. The two-liter soda bottle in your refrigerator is a polymer.
Scotch tape is constructed of polymers.
In the second part of this experiment, you will cross-link the polyvinyl alcohol chains. In the fifth part of this experiment, you will help restore the laboratory to its usual, pristine condition. An Investigation of PVA 1. Join a research group of two or three scientific researchers. We discussed the configuration of the polymer.