polymers Flashcards
monomer
small, repeating molecules that make up a polymer
difference between ethane polymers and monomers
polymers had a single carbon bond whereas monomers have a double carbon bond
what state are polymers at room temperature?
solids
why are polymers solid at room temp?
they have stronger intermolecular forces, meaning a lot of energy would be needed to break these forces
polymer
long chains of repeating molecules called monomers
what is PVC used for?
-window frames, pipes
what is PTFE used for?
-non-stick pans
draw poly(ethene)
pg 57
what are atoms in a polymer joined by?
strong covalent bonds
why do they have lower boiling points than ionic compounds?
the intermolecular forces are still weaker
what are thermosoftening polymers?
-type of polymer that melts/soften when heated
-there are no bonds between polymer chains
-strong intermolecular forces ensure structure is a solid at room temp
-these forces overcome with heating