4.46: Understand How to Deduce the Structure of a Monomer from the Repeat Unit of an Addition Polymer and Vice Versa

DEDUCING STRUCTURE OF MONOMER FROM A REPEAT UNIT:

To deduce the structure of a monomer from a repeat unit of an addition polymer, you need to reverse the process of drawing a repeat unit from a monomer (explained in 4.45):

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• Change the single bond in repeat unit into a double bond in monomer
• Remove bond from each end of the repeat unit

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Diagram:

            Diagram showing How to Deduce the Structure of a Monomer from a Repeat Unit
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Example: Deducing the structure of Chloroethene from a repeat unit of Poly(chloroethene)

Diagram showing the Monomer from the Repeat Unit of an Addition Polymer