plastics Flashcards
method of disposal : incineration
releases toxic fumes
method of disposal : landfill
runs out of space
method of disposal : recycling
expensive
type of plastic: polythene
light and strong used for plastic bags
type of plastic: PVC
hard and durable.non reactive can be used for window frames
type of plastic: polystyrene
soft and non reactive
can be used for packaging
type of plastic: PTFE
(polytetraflourene)
non reactive can be used for non stick frying pans
what can alkenes undergo to make polymers
polymerisation alkenes can react with them selves to become a long chain .
they also have repeat units
what do add tot he front of the alkene when it becomes a polymer
polyyyyyyy
explain the process of polymerisation
high temperature and catalyst
the double bond opens
the molecule is no able to join together to form long chains
this is called addition polymerisation/addition reaction
what is ethene
a reactive monomer that undergoes polymerisation to become a polymer
he longer the hydrocarbon the ……….
higher the boiling point since there are more inter molecular bonds between larger molecules so they will condenses at the bottom of the fraction
what is fraction
a mixture of hydrocarbons with similar chain length and similar boiling point
what order do you go in when you are balancing an equation of partial cmobustion
C H O
hydrogen
produces more energy per gram than any other hydrocarbon
