17.3.5 - Polyesters Flashcards
What is condensation polymerisation?
The joining of monomers with the elimination of one small molecule e.g water
What are polysesters?
Polymers bonded via an ester link
What two reactants can form a polyester in condensation polymerisation?
A diol and dicarboxylic acid
Example of a molecule that can undergo addition polymerisation?
Ethene
Propene
Differences between addition and condensation polymerisation?
In condensation polymerisation, a smaller molecule is formed.
In condensation, two different molecules react together
What groups in a dicarbocylic acid and a diol are removed when they react during condensation polymerisation?
The OH group from the dicarboxylic acid
The H group from the diol