C2 Chemistry - polymers and nanotechnology Flashcards Preview

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Flashcards in C2 Chemistry - polymers and nanotechnology Deck (14)
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1

what are polymers?

v large molecules made when smaller molecules join together

2

what are the small molecules called?

monomers

3

why can alkanes act as monomers?

they have a double bond

4

what is polyethene used for?

plastic bags and bottles

5

what is polyproene used for?

crates and ropes

6

whats is polychlorothene used for?

water pipes and insulation on electricity cables

7

how is polyethene made?

when ethene polymisers

8

what is nanotechnology?

the use and control of tiny matter

9

what is the tiny matter referred as?

nanoparticles

10

what are nanoparticles measured in?

nanometres

11

what do we use nanoparticles for? 3

sports wear
clothing
healthcare

12

how are nanoparticles used in sports wear? examples

they are added to materials to make them stronger
tennis rackets
golf clubs and shoes

13

how are nanoparticles used in healthcare?

used in sunscreens
offer protections and make no white mark

14

how could nanoparticles be harmful to us?

they could be able to enter the brain from bloodstream and cause damage