ACKNOWLEDGEMENT:
Figure
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Source of Figure
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Figure 9
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http://pixgood.com
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Polymer:
Polymers are synthetic macromolecules, made up of numerous
small repeating units called the monomers.
Addition Polymerization:
Addition polymerization can be defined as the reaction in
which, a large number of alkene molecules join together, under a temperature of
200°C and pressure of 2000 atmosphere and oxygen as the reaction initiator, to
form a single product called the polymer.
Let us consider the polymerization of ethane to Polyethene.
Here, the monomer is a single molecule of ethane. Figure 9 shows the reaction.
Figure 9:
The resulting polymer is NO longer a hydrocarbon like its
parent reactants, instead is plastic in nature and has wide range on industrial
uses.
Uses of Polyethene:
Polyethene is plastic in nature and has a wide variety of
industrial uses. It is used to make:
- Plastic bags
- Stretch wraps
- PVC pipes
- Containers
- Toys