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Chemistry

GCSE · Edexcel

QuestionsFlashcards

Group 1
- Group 1 (Alkali Metals)
  6
- Group 1: Reactivity & Electronic Configurations
  6
Group 7
Group 0

Qualitative Analysis: Tests for Ions
Hydrocarbons
Polymers
Alcohols & Carboxylic Acids
Bulk & Surface Properties of Matter Including Nanoparticles
- Nanoparticles
  7
- Ceramics, Polymers, Composites & Metals
  5

Condensation Polymers Flashcards

All 5 cards in this deck

Why is a polyester described as a condensation polymer?: Because a small molecule (water) is lost each time two monomers join together.
Which two types of monomer react to form a polyester?: A monomer with two carboxylic acid groups (–COOH) and a monomer with two alcohol groups (–OH).
What small molecule is formed each time an ester link is made during polyester formation?: A molecule of water, $\mathrm{H_2O}$ .
What is the ester link in a polyester?: The $-\mathrm{COO}-$ group joining two monomer units, formed from a –COOH group and an –OH group.
True or false? A condensation polymerisation can be carried out using only one type of monomer molecule with a C=C bond.: False. A C=C monomer gives an addition polymer; condensation polymerisation uses two different monomers, each with two functional groups.