Polymer Formation (VCE SSCE Chemistry): Flashcards
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Polymers definition
Polymers definition
Large molecules made of thousands of monomers
Monomers definition
Monomers definition
Small units that join together to form polymers
Key feature of addition polymerisation
Key feature of addition polymerisation
No atoms lost; all from monomers end up in polymer
LDPE production conditions
LDPE production conditions
High temperature and extremely high pressure
HDPE production conditions
HDPE production conditions
Low pressure, lower temp, Ziegler-Natta catalysts
Main structural difference: LDPE vs HDPE
Main structural difference: LDPE vs HDPE
LDPE has many branches; HDPE has few branches
Key feature of condensation polymerisation
Key feature of condensation polymerisation
Water released when functional groups react
Examples of natural polymers
Examples of natural polymers
Proteins, cellulose, starch, silk, chitin
Plastic as a property means
Plastic as a property means
Can be moulded into different shapes when heated
Why polymers are solid at room temp
Why polymers are solid at room temp
Strong dispersion forces between long polymer chains