Polymers or plastics

Polymers or plastics

1. Polymerisation

   • is a process to form plastic molecules

2. in addition polymerisation individual mers are formed from monomers by the action a catalyst

3. Thermoplastics are made by this process

4. Thermoplastic molecules are held together by secondary bonding or weak forces of attraction

5. copolymerisation is a process in which mers of different monomers are joined together in the same addition chain

6. condensation polymerisation produces a network of primary bonded, cross-linked molecules

7. Elastomers have an elastic memory because the long chain molecules are coiled and behave like springs

8. recycling of plastics is made difficult because it is hard to identify different plastics