17.3 5 Polyesters

Question 1

differences between addition and condensation polymerisation

Answer 1

In condensation polymerisation each time two monomers join together another small molecule is produced and usually two different monomers react together

Question 2

examples of small molecules formed

Answer 2

water and hydrogen chloride

Question 3

Reagents

Answer 3

A diol with two hydroxyl groups at either end
H-O-CH2-CH2-O-H
Dicarboxylic acid normally terephthalic acid which is two carboxylic acid groups with a benzene ring in the middle

Question 4

see

Answer 4

reaction in book

Question 5

see

Answer 5

formula in book

Question 6

polymer formed

Answer 6

terylene

Question 7

polyesters uses

Answer 7

soft drink bottles , food packaging ,many types of clothing and duvet fillings

Question 8

Possible to use

Answer 8

a dioyl chloride instead of a dicarboxylic acid although not uses as a monomer in industry only difference is HCl forms instead of water