The smart way to improve grades

Comprehensive & curriculum aligned

Affordable pricing from £10/month

Polymerisation

In this worksheet, students study the chemical structure of polymers and their uses according to their properties.

'Polymerisation ' worksheet

Key stage:  KS 4

Curriculum topic:  

Curriculum subtopic:  Bonding of Carbon Leading to Organic Compounds

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

Polymers are very big molecules with long chains and they are made from many small molecules called monomers. Poly- means many, mono- means one. You can get the name of the polymer if you add the prefix poly- before the name of the monomer. For example, poly(propene) is used to make ropes; lots of propene molecules form a long chain.


The reaction during which polymers are made is called polymerisation and high pressure and a catalyst are needed for it to occur. Catalysts are chemicals that speed up a reaction without being used in it.


Monomers have a double bond between their carbon atoms, but the corresponding polymer has only single bonds. Therefore, polymers can only be saturated (compounds with single bonds only). Look at the diagram showing ethene and poly(ethene):

 


Hydrocarbons are compounds made of hydrogen and carbon only. Monomers are hydrocarbons. There are two types of hydrocarbons: alkanes (single bonds, saturated) and alkenes (double bonds, unsaturated). The simplest alkane is methane, CH4. As you can see, it has one carbon atom and four hydrogen atoms. Bromine solution is used to test whether a hydrocarbon is saturated or not. Bromine solution is orange. Alkanes do not react with it so the solution remains orange. However, alkenes do react with it, so it turns colourless. In other words, bromine solution 'detects' double bonds.

 

  • PVC, poly(vinylchloride), is a waterproof polymer. It is also flexible and used to make raincoats.
  • Poly(ethene) is waterproof and flexible and used to make plastic bags.
  • Poly(styrene) is an insulator and absorbs shock, so it is used in packaging fragile products.
  • Poly(propylene) is strong and flexible and used to make ropes.
  • GORE-TEX is another polymer that is suitable for clothing for an active lifestyle and outdoor activities. It is waterproof and flexible, but what makes it unique is that it is also breathable, which means it allows sweat to pass through it, so it does not condense on the inside of clothes.

 

Biodegradable polymers - which dissolve - are now made to protect the environment.

Is the following sentence true or false?

 

A lot of polymers form a long chain to make a monomer.

true

false

What is the monomer used to make poly(propene)?

What do we call the process used to make polymers?

polyfying

polyfication

polymerisation

Select two factors needed when making polymers.
a catalyst

high temperature

high pressure

high concentration

Is the following statement true or false?

 

A saturated compound has only single bonds between carbon atoms.

true

false

Select two unsaturated compounds.

alkene

propene

poly(ethene)

methane

What compounds turn bromine solution colourless?

 

alkenes

alkanes

A compound contains hydrogen, carbon and nitrogen. Is it a hydrocarbon?
yes

no

Tick three waterproof materials.

PVC

Poly(ethene)

Poly(styrene)

GORE-TEX

What do we call polymers that dissolve and do not pollute the environment?

  • Question 1

Is the following sentence true or false?

 

A lot of polymers form a long chain to make a monomer.

CORRECT ANSWER
false
EDDIE SAYS
A lot of monomers form a long chain to make a polymer.
  • Question 2
What is the monomer used to make poly(propene)?
CORRECT ANSWER
propene
EDDIE SAYS
Propene is the monomer used to make poly(propene).
  • Question 3

What do we call the process used to make polymers?

CORRECT ANSWER
polymerisation
EDDIE SAYS
Polymerisation is the process used to make polymers.
  • Question 4
Select two factors needed when making polymers.
CORRECT ANSWER
a catalyst
high pressure
EDDIE SAYS
A catalyst and high pressure are needed in polymerisation.
  • Question 5
Is the following statement true or false?

 

A saturated compound has only single bonds between carbon atoms.

CORRECT ANSWER
true
EDDIE SAYS
A saturated compound has only single bonds between carbon atoms.
  • Question 6

Select two unsaturated compounds.

CORRECT ANSWER
alkene
propene
EDDIE SAYS
Alkene and propene are unsaturated compounds, because they have a double bond between their carbon atoms.
  • Question 7

What compounds turn bromine solution colourless?

 

CORRECT ANSWER
alkenes
EDDIE SAYS
Alkenes turn bromine solution colourless, because bromine reacts with their double bond.
  • Question 8
A compound contains hydrogen, carbon and nitrogen. Is it a hydrocarbon?
CORRECT ANSWER
no
EDDIE SAYS
Hydrocarbons contain only hydrogen and carbon.
  • Question 9

Tick three waterproof materials.

CORRECT ANSWER
PVC
Poly(ethene)
GORE-TEX
EDDIE SAYS
GORE-TEX, PVC and poly(ethene) are waterproof materials.
  • Question 10

What do we call polymers that dissolve and do not pollute the environment?

CORRECT ANSWER
biodegradable polymers
biodegradable polymer
biodegradable
EDDIE SAYS
Biodegradable polymers dissolve and do not pollute the environment.
---- OR ----

Sign up for a £1 trial so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Start your £1 trial

Start your trial for £1