Polymers

Polymers

Any substance containing very large molecules, formed when lots of small molecules join together
A substance made of macromolecules
Synthetic
1. Nylon
2. Terylene
3. Lyrca
4. Plastic
  1. Polysterene
  2. Perspex
  3. Polythene
  4. Polychloroethene(PVC)
5. Water-soluble
  1. Hair gel & shower gel
Natural
1. Starch
2. Cellulose
3. Proteins
4. Keratin
Production
1. Addition Polymerisation
  1. Double bonds in molecules break & they add on to each other
  2. Monomers must have C=C double bonds
2. Condensation Polymerisation
  1. Two different monomers join
  2. Each has 2 functional groups that take part in reaction
  3. Monomers join at functional group by eliminating small molecules
Plastics
1. Insulator
2. Unreactive
3. Strong & light
4. Some non-biodegradeable
Macromolecules in Food
1. Carbohydrates
  1. Monosaccharide
2. Proteins
  1. Amino Acids
    1. 20 types
3. Fats
  1. Esters
  2. Formed in condensation reaction
4. Fibre
  1. Cellulose

Zusammenfassung der Ressource

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