Designing Polymers for a Purpose (VCE SSCE Chemistry): Flashcards
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Factors customising polymer properties
Factors customising polymer properties
Chain length, monomer choice, branching, additives
Effect of longer polymer chains
Effect of longer polymer chains
Stronger intermolecular forces
UHMWPE uses
UHMWPE uses
Artificial hip joints, safety helmets, bulletproof vests
Copolymer definition
Copolymer definition
Polymer from at least two different monomers
PVC flammability
PVC flammability
Low flammability, self-extinguishes
PTFE melting point
PTFE melting point
335°C
Gore-Tex fabric function
Gore-Tex fabric function
Blocks liquid water, allows water vapour through
Why polystyrene is transparent
Why polystyrene is transparent
Bulky phenyl groups prevent close chain packing
Foamed polymer creation method
Foamed polymer creation method
Blowing gas through melted polymer
Major environmental polymer issue
Major environmental polymer issue
Non-biodegradable, persists for hundreds of years