Classification Of Polymers
Chapter Name : Polymers |
Sub Topic Code : 102_12_15_02_04 |
Topic Name : Classification Of Polymers |
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Sub Topic Name : Classification Based On Molecular Forces |
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Introduction
1.Polymers are used in many mechanical fields as they have a.High tensile strength b.Elasticity c.Toughness 2.These mechanical properties are due to inter molecular forces, e.g., van der Waals forces and hydrogen bonds, present in the polymer. 3.These forces also bind the polymer chains. 4.Polymers can be classified into four classes based on the strength of these forces in them: Elastomers, fibres, thermoplastic polymers and thermosetting polymers
Pre-Requisites:
Elements, compounds, molecules
Activity:
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Real Life Question:
How is plastic made?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| polymerization. | The process of formation of polymers from respective monomers |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| plastic | Plastic is a polymer |
Real life uses :
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Places to visit :
Departmental store
Practical examples around us
| Examples | Explainations |
|---|---|
| Plastic toys, buckets | All are made of polymers |
What you learn in Theory:
1.Polymers are used in many mechanical fields as they have a.High tensile strength b.Elasticity c.Toughness 2.These mechanical properties are due to inter molecular forces, e.g., van der Waals forces and hydrogen bonds, present in the polymer. 3.These forces also bind the polymer chains. 4.Polymers can be classified into four classes based on the strength of these forces in them: Elastomers, fibres, thermoplastic polymers and thermosetting polymers
What you learn in Practice:
Polymers have a variety of uses