Addition Polymers

Question 1

What are addition polymers?

Answer 1

Plastics - long polymer molecules that are made from smaller monomer molecules joined together ; many ethene molecules join together to form a polymer called poly(ethene)

Question 2

Why is poly(ethene) an addition polymer?

Answer 2

Because the ethene monomers undergo an addition reaction as they contain C=C double covalent bonds (alkenes) ; all alkenes can acts as monomers for addition polymers

Question 3

Conditions needed for addition polymerisation

Answer 3

High pressure and a catalyst

Question 4

How is the model to show addition polymers limited?

Answer 4

It is limited because the real polymers mag be made of thousands of smaller monomer molecules but this just disallow a few

Question 5

How to display addition polymerisation through repeating units?

Answer 5

CHANGE DOUBKE BOND TO SINGLE BOND
DRAW TWO LONG BONDS ON EITHER SIDE PASSING THROUGH SQUARE BRACKETS ON OUTSIDE
DISPLAYED FORMULA = REPEATING UNIT AND n ON BOTTOM LEFT