1. Polyamides
Higher Chemistry

2. Our Plan For Today
We are going to learn about the structure of amines and how polyamides are formed by condensation polymerisation.
Amines – What Are They?
Amines structure
Polyamides – Structures
Nylon - Polyamide

3. Amines –NH2
The amines are a homologus series of carbon compounds all containing nitrogen atoms.
The amine or amino group

4. Copy and Complete Go down to hexylamine with 6 carbon atoms
No of carbon atoms
Name of Amine
Structure
Shortened Structural Formula 1
methylamine
CH3 – NH2 2
ethylamine
CH3-CH2-NH2
Go down to hexylamine with 6 carbon atoms

5. Polyamide Formation
Polyamides are formed when molecules with an amino group at one end and a carboxyl group at the other end combine. O O O H H H
N C - OH
N C - OH
N C - OH H H H
Condensation polymerisation
Water removed during reaction O H O H O H
N C -
N C -
N C - OH H
Amide / Peptide link

6. Individual Tasks Stick both parts of appendix 2.19 into your jotter.
Read through the information on how nylon is formed (polyamides continued)
Turn to page 26 of your work booklets – Answer the questions in your rough notes jotters.