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Differentiate between thermosetting and thermo-softening plastics. 

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Thermosetting
Thermo-softening
1. The plastics who possess three dimensional complicated structure with cross linkages are called as thermo setting plastics
1. The plastics who possess linear long chain structure without cross linkages are called as thermo softening plastics
2. They are formed by condensation polymerization
2. They are formed by addition polymerization
3. They consist of polymers of higher molecular weight
3. They consist of polymers of smaller molecular weight
4. They are harder, stronger & more brittle 
4. They are softer, weaker &less brittle
5. They have high tensile strength
5. They have low tensile strength
6. Their inter molecular bonds are strong covalent bonds 
6. Their inter molecular bonds are weak
7. They do not soften on heating
7. They soften on heating
8. They are insoluble in organic solvent
8. They are soluble in organic solvent
9. They cannot be reshaped and reused
9. They can be reshaped and reused 
10. They cannot be reclaimed from the waste
10. They can be reclaimed from the waste
11. Examples- Bakelite, Polyester, Nylon66, Urea formaldehyde, Silicon plastic
11. Examples- Polythene, Polystyrene, PVC, Teflon 

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