Polymerisation

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  • Created by: 12BE
  • Created on: 06-02-17 17:59
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  • Polymerisation
    • Alkanes
      • Have saturated bonds
        • This means that their carbon atoms are joined to each other by single covalent bonds. This makes them relatively unreactive, apart from burning or combustion, which is their reaction with oxygen in the air.
      • Have the general formula    CnH(2n+2)
      • The first 5 alkanes are: CH4 (methane), C2H6 (ethane), C3H8 (propane), C4H10 (butane), C5H12 (pentane
      • Bromine water is a dilute solution of bromine that is normally orange-brown in colour, but becomes colourless when shaken with an alkene. Alkenes can decolourise bromine water, while alkanes cannot as they do not have bonds to add on to.
        • Alkenes
          • Have one unsaturated bond
            • They contain a double bond, which is shown as two lines between two of the carbon atoms. The presence of this double bond allows alkenes to react in ways that alkanes cannot. They can react with oxygen in the air
          • Have the general formula CnH2n
          • Polymerisation
            • Alkanes
              • Have saturated bonds
                • This means that their carbon atoms are joined to each other by single covalent bonds. This makes them relatively unreactive, apart from burning or combustion, which is their reaction with oxygen in the air.
              • Have the general formula    CnH(2n+2)
              • The first 5 alkanes are: CH4 (methane), C2H6 (ethane), C3H8 (propane), C4H10 (butane), C5H12 (pentane
              • Bromine water is a dilute solution of bromine that is normally orange-brown in colour, but becomes colourless when shaken with an alkene. Alkenes can decolourise bromine water, while alkanes cannot as they do not have bonds to add on to.
                • Alkenes
                  • Have one unsaturated bond
                    • They contain a double bond, which is shown as two lines between two of the carbon atoms. The presence of this double bond allows alkenes to react in ways that alkanes cannot. They can react with oxygen in the air
                  • Have the general formula CnH2n
            • Addition Polymerisation
              • A process in which many alkene monomer molecules react together to give a polymer which requires high pressure and a catalyst. Its the addition of unsaturated molecules.
            • Polymers
              • Polymers are very large molecules made when many smaller molecules join together, end-to-end. The smaller molecules are called monomers
              • Many polymers can be recycled. This reduces disposal problems and the amount of crude oil used. But first the different polymers must be separated from each other. This can be difficult and expensive.
            • Condensation Polymerisation
              • Some polymers are not made from alkene monomers and these are called condensation polymers.
              • Water is a product of this reaction
    • Addition Polymerisation
      • A process in which many alkene monomer molecules react together to give a polymer which requires high pressure and a catalyst. Its the addition of unsaturated molecules.
    • Polymers
      • Polymers are very large molecules made when many smaller molecules join together, end-to-end. The smaller molecules are called monomers
      • Many polymers can be recycled. This reduces disposal problems and the amount of crude oil used. But first the different polymers must be separated from each other. This can be difficult and expensive.
    • Condensation Polymerisation
      • Some polymers are not made from alkene monomers and these are called condensation polymers.
      • Water is a product of this reaction

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