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Summary GCSE Chemistry Edexcel - GCSE Chemistry - Paper 2 - Topic 9bii - Polymers
Everything you need to know about polymers
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Involves polymers with functional groupsA functional group is a group of atoms which are responsible
for the chemical properties of a compound
When monomers react, bonds for between them, making
polymer chains. For each new bon that forms a small
molecule (like water) is lost
Dicarboxylix acid monomers can react with diol monomers to
form ester links
The dicarboxylic acid molecules contain two carboxylic acid Condensation polymers
groups (-COOH) and the diol monomers contain two alcohol
groups (-OH)
The molecle with the ester link has a functional group at the end
which can react during condensation reactions making the chain
longer
Polyesters
Alcohol and carboxylix acid functional groups react, losing a
small molecule - water
A small molecule is formed as a by-product each time a bond is
formed between two monomers
The series of these reactions is known as condensation
polymerisation and the resultant polymer is called an ester
Polymers are substances with high RAMS made by joining
up lots of small repeating unites called monomers
Monomers are single unites from which plymers are made
Addition polymerisation is when many small alkene molecule Addition Polymers
join up to form a long chain molecule of repeating units
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