C11

Question 1

plastics

Answer 1

made of polymers- very big molecules
small units used to make polymers = monomers
reaction used to make a polymer is called polymerisation

Question 2

addition polymerisation

Answer 2

addition polymer formed when thousands of alkene molecules join together
double covalent bond opens up, beocmes a single C-C bond.
polymer formed, only one product formed in the reaction.
repeating unit of the polymer has the same atoms as the monomer.
poly(alkene)

Question 3

differences between addition and condensation polymerisation

Answer 3

ADDITION / CONDENSATION
only 1 product formed / 2 different products formed(polymer + small molecule, usually water)
monomers usually the same alkene, / often 2 different monomers used, each monomer has a functional group at
containg C-C double bonds both ends, functional groups on 2 different monomers react to form polymer

Question 4

examples of condensation polymers

Answer 4

polyester and nylon

Question 5

forming a polyester

Question 6

diol and dicarboxylic acid

Answer 6

diol- an alcohol containing 2 OH groups

dicarboxylic acid- a carboxylic acid containing 2 COOH groups.