Polyesters

Question 1

condensation polymerisation is

Answer 1

the formation of a polymer, usually by the reaction of two different monomers, and in which s small molecule is also formed

Question 2

in addition polymerisation, all/part of the atoms in the monomer molecules end up in the structure of the polymer

Answer 2

all atoms

Question 3

the two main difference between condensation polymerisation and addition are:

Answer 3

• each time two monomer molecules join together, another small molecule is formed in condensation
• usually two different monomers react together in condensation

Question 4

in many examples of condensation, the small molecule formed is
in other examples its

Answer 4

water

hydrogen chloride

Question 5

when producing a polymer, we need two monomers, each with……………reactive group(s) at either end

Answer 5

two reactive groups, one at either end

Question 6

alcohols usually involved in condensation reaction, as monomers, are more accurately known as….because

Answer 6

diols because they have an OH group at either end

Question 7

as with the diols used as monomers, the carboxylic acid used as actually

Answer 7

dicarboxylic acids with a COOH group at either end of the molecule

Question 8

the common name for the compound below is: (in the middle is a benzene structure)
_
HOOC - / O \ - COOH
\ _ /

Answer 8

terephthalic acid

Question 9

when terephthalic acid reacts with ethandiol, the small molecule formed is……….as the ……. and the…..from the two monomers react

Answer 9

water

the OH from the dicarboxylic acid and the H from the alcohol react

Question 10

we can also form polymers by using a…..instead of a dicarboxylic acid. this produces….as the small molecule, not water

Answer 10

dioyl chloride

hydrogen chloride produced