Macromolecules

• Macromolecules are giant molecular structures consisting of many monomers joined together by covalent bonds. Like graphite and diamond
• Polymers are a type of macromolecule consisting of many monomers joined together.
• Addition Polymerisation: A polymerisation reaction in which two or more monomers [an unsaturated molecule, usually an alkene] are added to form a polymer.

  Because of this, addition polymers are often referred to as Polyalkenes
• Polythene: packaging, plastic bags
• Polystyrene: disposable plates, heat insulator in buildings
• Polyvinylchlroide (P.V.C): rain coats, plumbing fittings
• Polypropene: plastic containers, bowls, hinges for lids
• Teflon: non stick coatings for irons and pots
• Perspex: glass substitute in aircraft windows, reflectors on vehicles and sign boards
• Condensation Polymerisation: A polymerisation reaction in which a molecule is formed by the condensation of two monomers with the elimination of a small molecule (like water). Two products are formed, the polymer and the small eliminated molecule
• Polyamide: amide linkage between monomer unit
• Polyester: ester linkage between monomers
• Polysaccaride: saccaride linkage between monomers