Terylene (polyester) is a condensation polymer - HSC - SSCE Chemistry - Question 4 - 2005 - Paper 1
Question 4
Terylene (polyester) is a condensation polymer. Part of the structure of the polymer is shown.
What are the two monomers that form this polymer?
(A) Monomer 1
(B) ... show full transcript
Worked Solution & Example Answer:Terylene (polyester) is a condensation polymer - HSC - SSCE Chemistry - Question 4 - 2005 - Paper 1
Step 1
Identify Monomer 1
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Answer
Monomer 1 is the first component of the polyester, commonly known as Terephthalic acid, which has the following structure:
HOOC
|
C6H4
|
COOH
This structure contains a benzene ring with two carboxylic acid groups (–COOH) attached to it.
Step 2
Identify Monomer 2
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Answer
Monomer 2 is the second component, which is Ethylene glycol, represented as follows:
HO–CH2–CH2–OH
This monomer contains two hydroxyl groups (–OH) at both ends of the ethylene chain.
Step 3
Select the correct option
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Answer
Based on the structures of the two monomers identified, the correct choice is option (D).
