Flashcards in Outcome 2- Polymers Deck (10):
Low density Polymer- High number of side branches. makes them soft
High density Polyer- Low number of side branches. makes them hard and rigid
When there are a lot of Cross links. making it hard and impossible to mould back. chars when heated
Low amount of Cross links. which makes them soft and able to be remoulded when heated.
When side branches are arranged on the same side of a linear polymer making them rigid and tough
Side branches occur at irregular points on both side of the chain of linear polymers. makes them soft and waxy with little potential of use.
Writting an addition polymer Etc Butene
c-c-c | c-c-c | c-c-c
General structural model for polymer materials and the forces existing between chains
What is a plasticiser?
Plasticsers go in-between carbon chains and pull them apart from each other making the polymer more flexible.