Across
- 1. organic compound containing one or more double of triple bonds.
- 4. This is used as a catalyst in addition polymerisation.
- 6. Has positive or slightly positive charge, attacks electron rich areas.
- 8. (t = about 60 pressure = low)- conditions of ____ density poly(ethene).
- 9. Small molecules that join together to make polymers.
Down
- 2. The process by which polyethene and other polymers is made is called _______ polymerisation.
- 3. step of addition polymerisation in which 2 free radicals are forming final molecules.
- 5. Long chain molecule made from lots of small molecules joined together.
- 7. (t = about 200 pressure = about 2000 atm)- conditions of ____ density poly(ethene).