Chemistry · Grades 9–12
Monomers, repeat units and polymer properties · Revision sheet
Connect long-chain structure with properties without universal recyclability claims.
Learn the idea
Polymer
A polymer contains many repeating structural units derived from smaller starting molecules.
Addition
In a simple alkene addition polymer model, the double bond opens into backbone single bonds.
Condensation
Some step-growth polymer examples form links while releasing small molecules; not every step-growth process does.
Properties
Chain length, branching, cross-linking and intermolecular interactions affect material properties.
Explain without looking
- What does a bracketed repeat unit represent?
- Why must end groups be considered for an exact molecular formula of a short polymer chain?
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Independent educational review required. Grade bands are approximate; these are not officially aligned curricula.