Nylon 6,6 presentation

1. Nylon 6,6
By..
Jaspreet, Salmah and Tolu

2. •Nylon-6,6 is a type of polymer- a polyamide.
•It is commonly known as nylon.
•The IUPAC name for nylon 6,6 is- hexane-1, 6
diamine.
•The simple molecular formula for nylon 6,6 is -
C12H22N2O2.
•The CAS number is: 32131-17-2
•The molecular weight is: 262.345840 g/mol.
Nylon 6,6

3. Structure of Nylon 6,6-
C12H22N2O2.

4. Structure of Nylon 6,6 showing
hydrogen bonds

5. Physical properties
•Melting point of about 255- 265 °C
•Stability: Stable.
•Nylon 6,6 is slightly soluble in boiling water.
•It is an amorphous solid.
•Glass transition temperature: 50oC.
•Amorphous density at 25oC: 1.07 g/cm3.
•Crystalline density at 25oC: 1.24 g/cm3.
•Molecular weight of repeat unit: 226.32 g/mol.

6. Chemical Data- how its made
•Nylon-6, 6 is made from two monomers each of which contain 6
carbon atoms, (hence Nylon 6, 6).
•One of the monomers is a 6 carbon acid with a -COOH group at each
end - hexanedioic acid.
•The other monomer is a 6 carbon chain with an amino group, -NH2,
at each end. This is 1,6-diaminohexane.
•When these two compounds polymerise, the amine and acid groups
combine, each time with the loss of a molecule of water. This is
known as condensation polymerisation.

7. Chemical Data- continued
•Condensation polymerisation is the formation of a polymer involving
the loss of a small molecule. In this case, the molecule is water, but in
other cases different small molecules might be lost. The diagram
shows the loss of water between two of the monomers:
• This keeps on happening, and so you get a chain which looks like
this:

8. Uses of Nylon 6,6
•Nylon 6,6 is used for the following:
airbags, tires, ropes, conveyor belts,
hoses.
•It is a light material so it is suitable to be
used for parachutes.
•It is waterproof so it is used to make
swimwear.
•It is also resistant to water, so it is used to
make machine parts.

9. Pictures of Nylon 6,6 in use

10. How its physical and chemical properties
make nylon 6,6 suitable for its uses
•Nylon 6,6 has a high melting point which
makes it more resistant to heat and friction.
•Its chemical stability enables it not to be
affected by solvents such as water, alcohol,
etc. And even alkali.
•Its amorphous structures accounts for its
elastic property.