Polymers Definitions


Natural Polymers
Synthetic Polymers - Plastics
Macromolecule
A molecule that consists of a large number of atoms, around 20 000 atoms!


Polymer
A large molecule composed of smaller monomer units covalently bonded to each other in a repeating pattern


Monomer
Small organic molecules that can be covalently bonded to each other in a repeating pattern


Polymerisation
A chemical reaction in which monomer molecules join to form a polymer


Addition polymerisation
A reaction in which small molecules join to form very large molecules by adding on double bonds


Addition polymer
A polymer formed when monomers (usually containing a double bond) combine through an addition reaction


Condensation polymerisation
A reaction - molecules of two monomers with different functional groups undergo condensation reactions with the loss of small molecules, usually water.


Condensation polymer
A polymer formed by two monomers with different functional groups that are linked together in a condensation reaction in which a small molecule, usually water, is lost.






Copyright © V. Gokal
academic@afrihost.co.za