Edexcel IAL Chemistry A2 19.9 structural formulae of polymer repeat units
Edexcel IAL Chemistry A2 19.9 structural formulae of polymer repeat units
For repeat-unit drawings, keep the correct side groups and trailing bonds, then check whether the monomer pair forms an amide link or an addition backbone.
How this is tested
- Draw poly(ethenol) or polyamide repeat units with correct side groups and trailing bonds.
- Convert monomers into repeat units containing the correct amide linkage.
- Calculate percentage by mass from atoms or groups in a displayed repeat unit.