define condensation polymerisation
joining of monomers with loss of small molecules usually water of HCL
what is needed in condensation polymerisation?
two different functional groups are needed
how do you form a polyester?
monomers are joined together by ester linkages in a long chain to form the polymer
what can polyesters be made from?
one monomer containing both a carboxylic acid and an alcohol or from two monomers one containing two carboxylic acid and one containing two alcohol groups
what are polyamides?
condensation polymers formed when monomers are joined together by amide linkages in a long chain to form a polymer
what can polyamides be made from?
one monomer containing both a carboxylic acid and an amine group or from two monomers, one containing two carboxylic groups and the other containing two amine groups
what can polyesters or polyamides be broken down with?
hydrolysed using hot aqueous alkali like sodium hydroxide or hot aqueous acid like HCl