What is an addition polymer, and how does it differ from other types of polymers?

An addition polymer is formed when monomers with double bonds react together, resulting in a polymer that contains the same atoms as the original monomers. This differs from other types of polymers, such as condensation polymers, which involve the loss of small molecules during the polymerization process.

This question tests the understanding of polymer types and their formation processes. It assesses the student's ability to differentiate between addition and condensation polymers, which is crucial for grasping organic chemistry concepts. This response is aligned to Polymerisation and naturally occurring polymers because it explains in addition polymers, the repeating unit has the same atoms as the monomer because no other molecule is formed in the reaction using the correct AQA GCSE Chemistry organic context. Keep molecular formula, structural formula, displayed formula, and general formula distinct. Do not confuse alkanes with alkenes, saturated with unsaturated, cracking with combustion, polymers with monomers, or hydrocarbons with oxygen-containing alcohols and carboxylic acids. When formulae are used, preserve the stored notation exactly and explain the GCSE chemistry idea in words rather than using unsupported displayed-formula diagrams. This response is aligned to Polymerisation and naturally occurring polymers because it explains in addition polymers, the repeating unit has the same atoms as the monomer because no other molecule is formed in the reaction using the correct AQA GCSE Chemistry organic context. Keep molecular formula, structural formula, displayed formula, and general formula distinct. Do not confuse alkanes with alkenes, saturated with unsaturated, cracking with combustion, polymers with monomers, or hydrocarbons with oxygen-containing alcohols and carboxylic acids. When formulae are used, preserve the stored notation exactly and explain the GCSE chemistry idea in words rather than using unsupported displayed-formula diagrams.