Plastics and Polymers (Grade 12 NSC Matric Physical Sciences): Flashcards
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Practise the cards
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Polymer
Polymer
Large molecules made of repeating monomer units
Monomer
Monomer
Small molecule that combines to form polymers
Addition polymerisation key feature
Addition polymerisation key feature
No small molecules eliminated
Condensation polymerisation product
Condensation polymerisation product
Water () eliminated
Four major addition polymers
Four major addition polymers
Polyethylene, polypropylene, PVC, polystyrene
Monomer for polyethylene
Monomer for polyethylene
Ethene
Monomer for PVC
Monomer for PVC
Vinyl chloride
Polymer vs monomer physical state
Polymer vs monomer physical state
Polymers: solids; Monomers: gases/liquids
Two monomers for PET
Two monomers for PET
Ethylene glycol & terephthalic acid
PLA environmental advantage
PLA environmental advantage
Biodegradable, from biological sources