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Polymer (1)
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Definition of polymer
Polymer is a long chain of molecule which consists of smaller, repeating molecular units called monomers
Definition of monomer
Monomer is a small molecule and the preating unit in a polymer
Definition of polymerisation
A process where monomers combine with one another to form a polymer
Definition of depolymerisation
The splitting processs of a polymer into monomers
Two classes of polyme
Natural polymer & Synthetic polymer
Definition of natural polymer
Polymers that exist naturally in animals and plants
Definition of synthetic polymer
Polymers which are produced in the industry or laboratory through polymerisation
Definition of vulcanistaion
Processes of heating the rubber with sulphur
Properties of vulcanised rubber
Hard and more elastic Good electrical conductor Not easily oxidised in air Does not react with acid and alkali Not permeable to liquid and air Resistant to heat
Polymerisation & Depolymerisation diagram
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