Unit 1 AOS 2 Polymers (3)

What is crude oil composed of?

• Many different Atoms that all have different sizes and uses.

• Many different Alkenes that all have different sizes and uses.

• Many different Alkynes that all have different sizes and uses.

• Many different Hydrocarbons that all have different sizes and uses.

What is this type of reaction called?

• Reduction reaction

• Carbon dioxide production

• Oxygen reaction

• Combustion reaction

Why is the combustion of hydrocarbons so useful in our society?

• Recycles hydrocarbons

• Produces energy

• Produces water

• Produces carbon dioxide

What is a polymerisation reaction?

• Formation of hydrocarbons

• Combustion of hydrocarbons

• Addition of polymers to make a monomer

• Addition of monomers to make a polymer

What needs to be present for a polymerisation reaction to take place.

• Pressure which breaks the double bond and allows the 'addition' of monomers to bond together

• Catalyst, such as heat, which breaks the double bond and allows the 'addition' of monomers to bond together

• Catalyst, such as heat, which breaks the single bonds and allows the 'addition' of monomers to bond together

• Pressure which breaks the single bonds and allows the 'addition' of monomers to bond together

In this reaction, Ethene is a:

• Polymer

• Monomer

• Catalyst

• Saturated hydrocarbon

What are these examples of?

• Primary, Secondary and Tertiary polymers

• Chain, Branched and network polymers

• Linear, Branched and Cross-linked polymers

• Link, Branched and cyclic polymers

Thermoplastics:

• Soften when heated and can be remoulded or recycled

• Decompose or burn when heated and do not soften

• Have strong covalent bonds and are difficult to recycle

• Have hydrogen bonds, dipole-dipole or dispersion forces between chains and decompose or burn when heated

What is a disadvantage of a polymer?

• Can not be recycled

• Many are derived from petroleum, a non-renewable resource

• Genetically biological inert

• Properties can not be modified

• Materials that decompose or burn when heated

• and are difficult to recycle are called?

• Plastics

• Thermoplastics

• Thermosetting materials

• Rigid plastics