Polymers (Leaving Cert Chemistry): Flashcards
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Polymers definition
Polymers definition
Large molecules of long chains made from many smaller units joined
Monomers definition
Monomers definition
Small building blocks that join together to make polymers
Common name for polymers in everyday life
Common name for polymers in everyday life
Plastics
Etymology of 'polymer'
Etymology of 'polymer'
'Poly' (many) + 'mer' (parts) = many parts joined together
Requirement for addition polymerisation
Requirement for addition polymerisation
Monomers must contain double bonds
Monomer that forms polyethene
Monomer that forms polyethene
Ethene
Common uses of polyethene
Common uses of polyethene
Shopping bags, food packaging, bowls, lunch boxes, toys, buckets
Full name of PVC
Full name of PVC
Polychloroethene
Why PVC is more rigid than polyethene
Why PVC is more rigid than polyethene
Chlorine atoms create stronger attractions between polymer chains
Common uses of PVC
Common uses of PVC
Window frames, doors, gutters, drainpipes, bank cards
Special feature of polystyrene structure
Special feature of polystyrene structure
Contains a benzene ring attached to main carbon chain
Repeating unit definition
Repeating unit definition
Smallest part of polymer that repeats to produce complete chain
Non-biodegradable meaning
Non-biodegradable meaning
Cannot be broken down by microorganisms into natural substances
Why polymers are non-biodegradable
Why polymers are non-biodegradable
Strong carbon-carbon polymer chains resist microorganism attack
How long addition polymers persist in environment
How long addition polymers persist in environment
Hundreds of years
