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GCSE Chemistry · key term
A reaction in which monomers with two functional groups join repeatedly to form a polymer, usually releasing a small molecule such as water whenever a new link forms.
Used by AQA, Edexcel and OCR
Specification 4.7.3.2, 4.7.3.3 · Paper 2
Revise: Condensation PolymerisationIn condensation polymerisation, each monomer has two functional groups, so it can form a covalent link at each end.
A type of polymerisation in which monomers with two functional groups join and a small molecule, usually water, is formed at each new link.
Specification 9.22C · Paper 2
Polymerisation in which monomers join and a small molecule, usually water, is eliminated when each new link forms.
Specification C6.2f · Paper 2 (Foundation), Paper 4 (Higher)
A reaction in which monomers join to form a polymer while a small molecule is released at each link formed.
Revise: Polymerisation TechniquesIn condensation polymerisation, each new link between monomers forms alongside a small molecule. OCR suggests making nylon as a practical way to see this happen. The nylon is a polyamide: its chain contains amide links.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A reaction in which monomers join to form a polymer while a small molecule, often water, is formed.
Revise: Condensation polymerisation principlesIn condensation polymerisation, functional groups on the monomers react to make new covalent links. Each time monomers join, a small molecule is formed at the same time. In the examples here, that small molecule is water.
For condensation polymerisation, identify both products: the polypeptide and water. Do not describe the process as addition polymerisation.
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