C1 Part 2
- Created by: Hannah Douthwaite 16
- Created on: 16-04-16 11:35
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- C1
- Plastics
- Polymerisation
- >
- Lots of unsaturated monomers
- Polymer
- Pressure and Catalyst
- Forces between molecules determine properties
- Weak
- Stretchy
- Low melting point
- Weak intermolecular forces
- Strong
- Covalent bonds
- Cross-linking bridges
- Rigid
- High melting point
- Weak
- Uses
- Strong + Rigid
- e.g. high density polyethene
- Plastic bottles
- Light + Stretchable
- e.g. low density polyethene
- Plastics bags or squeezy bottles
- Strong + Durable
- Stretchy
- Synthetic leathers
- Rigid
- Window frames or pipes
- e.g. PVC
- Stretchy
- Polystyrene Foam
- Packaging
- Cups
- Good insulator
- Clothes
- Nylon
- Polyurethane Coating
- Waterproof
- Blocks UV
- Traps sweat
- Expanded PTFE laminate
- Gore Tex
- Keeps water droplets out
- Lets sweat vapour out
- Polyurethane Coating
- Nylon
- Strong + Rigid
- Polymerisation
- Hydrocarbons
- Alkanes
- Single bonds
- Saturated
- Fractional distillation
- BODKNPL
- Long - bottom Short - top
- Boiling Points
- Alkenes
- Double and single bonds
- Unsaturated
- Properties
- As chain gets longer:
- Gets more viscous
- Gets less flammable
- Gets less volatile
- Boiling point increases
- As chain gets longer:
- Cracking
- Hot plus a catalyst
- Aluminium oxide
- 400-700 degrees
- Long alkane
- >
- shorter alkane + alkene
- >
- Supply and demand
- Vaporised
- Hot plus a catalyst
- Aluminium oxide
- 400-700 degrees
- Hot plus a catalyst
- Hot plus a catalyst
- Problems
- Political
- Environmental
- Oil slicks
- Detergents
- Oil slicks
- Alkanes
- Plastics
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