addition polymers

Question 1

Addition Polymers

Question 2

Polymers (plastics) are long-chain molecules formed by many monomers (smaller molecules) bonded together

Question 3

Addition polymes are made when many alkenes join together (the C-C bond opens up and each C atom uses this

Question 4

freed-up bond to male a new bond to the next molecule

Answer 4

forming one long chain)

Question 5

Polymers are named after their monomer:

Question 6

Other Polymer Terms:

Question 7

→ Ethene → Polyethene

Question 8

Thermosoftening: metts when heated

Question 9

→ Propene → Polypropene

Question 10

Thermosetting: do not melt when heated

Question 11

→ Styrene → Polystyrene

Question 12

Shape- memory. retum to their onginal shape when warmed

Question 13

→ Vinylchlonde → PolyvinyIchlonde (PVC)

Question 14

Bio-degradeable: can be broken down by micro-organisms.

Question 15

How to draw/wite the formula for polymers:

Question 16

Example 1:

Question 17

Ethene → Polyethene

Question 18

H

Question 19

C = C

Question 20

→

Question 21

H7

Question 22

LS - St

Question 23

HJ

Question 24

n

Question 25

Example 2:

Question 26

Chloroethene → Polychloroethene n

Question 27

The n means

Question 28

“lots’ often in the
thousands
,Н
C= C
H’
‘H
→
ES 37.
Example 3:
Propone »Pedigropene n M-C-C=C-H →
gog the may
So to draw a polymer, draw the monomer, but…
1) Make the C=C a C-C
2) Trailing bonds from the carbon atoms outwards.
3) Add large brackets
4) Add the n.
283
276