1. Module 6

1.28. Page 4

Module 6 Lesson 5

Module 6—Petrochemicals

Lesson Summary

 

In Lesson 5 you considered the following questions:

  • What is the process used to make plastic?
  • What properties must molecules have if they are to be used in making plastic?

Polymerization is the process of creating large molecules by linking many smaller molecules together. One type of polymerization is addition polymerization. This process involves linking many alkene molecules to form polymers. Polymers are many monomers linked together. Synthetic polymers such as polyethylene, polyvinyl chloride, polypropylene, and polystyrene are used to create a variety of plastic products.

 

Lesson Glossary

 

monomer: a small molecule that links with many other similar molecules in an addition or condensation reaction to create a polymer

 

polymer: a large molecule made by linking together many smaller molecules called monomers

 

polymerization: the process of forming polymers from monomers through addition or condensation reactions