C1:8 Making polymers Flashcards
C1:8 Making polymers
what are the molecules in plastics called?
polymer molecules
how large are polymer molecules?
very large
What are polymer molecules made up of?
They are made up of very many smaller molecules called monomers which are joined together.
What is poly(ethene) made of?
ethene monomers
what is poly(propene) made of?
propene monomers
Name the polymer made from chloroethene
polychloroethene
name the monomer needed to make polystyrene
styrene
What is the chemical reaction needed to make a polymer from monomers caleld?
polymerisation
What is usually needed for polymerisation to happen?
A high pressure and a catalyst
What happens during polymerisation?
During polymerisation the monomer molecules join together end to end.
What is addition polymerisation?
Addition polymerisation is the type of polymerisation involving alkene monomers.
What happens during addition polymerisation?
during addition polymerisation unsaturated monomer molecules react together to form a saturated polymer molecule.
