Condensation polymers for Edexcel A-level Chemistry

This page covers the following topics:

1. Condensation polymerisation and amino acids
2. Further condensation polymerisation
3. Definitions of polymer terms
4. Intermolecular forces

Amino acids can react by condensation polymerisation to form biological proteins.

When dicarboxylic acid and diol monomers join through condensation polymrisarion, a polyester is formed.

A polymer is a long chain molecules made up of many smaller molecules. Polyamides, polypeptides and polyesters are all types of polymers.

Condensation polymers are made up of monomers connected through polar bonds: C-N and C-O.

1

Draw the product formed when NH₂CH₂NH₂ forms a singular peptide bond with CO₂CH₂CO₂H.

image

2

What is a polyester?

It is polymer with the repeating units bonded through ester linkages.

3

What molecule is lost when two amino acids join in a condensation reaction?

water molecule

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