Making polymers Flashcards
What is addition polymerisation
unsaturated monomer molecules (alkenes) react to form saturated polymers
How many bonds can carbon atoms have maximum
4
Do alkanes have any effect on bromine water
No
Do alkenes have any effect on bromine water
What reaction is this and what is made
Yes, de-colourise it (orange)
This is an ADDITION REACTION and a dibromo compound is made
What is needed for Polymerisation and why
Catalyst and high pressure. The alkenes join together so they don’t produce another substance
Why can large numbers of monomers can be joined to make long chain polymers
Monomer carbon-carbon bonds are easily broken
How many carbons in ethane/ethene?
2
How many carbons in propane/propene
What is the molecular formula
3
How many carbons in butane/butene
What is the molecular formula
4
An alkene contains two shared pairs of what?
Electrons
What can the alkenes made by cracking by used as
Monomers that react together to produce polymers
What monomer makes polyethene
Ethene
Ethane molecular formula
C2H6
Ethene molecular formula
C2H4
How many bonds do hydrogen atoms have
One bond each