State what kevlar is made from

1,4-diaminobenzene and benzene-1,4-dicarboxylic acid

Name some uses of kevlar

Used in bulletproof vests, boat construction, car tyres and lightweight spots equipment

State what terylene (PET) is made from

Benzene-1,4-dicarboxylic acid and ethane-1,2diol

Name some uses of terylene (PET)

Used in plastic bottles, clothing, sheets and sails

Why are condensation polymers stronger & more rigid than addition polymers?

∵ made up of chains contains polar bonds e.g. C-N and C-O∴ have Van der Waals forces, permanent dipole-dipole forces and hydrogen bonds between polymer chains

Why are polyalkenes (addition polymers) non-biodegradable and won’t react when being used?

Have non-polar C-C bonds = unreactive and chemically inert

Why are condensation polymers biodegradable?

polar bonds (e.g. C=O) in chains = open to attack by nucleophiles∴ can be broken down by hydrolysis∴ are biodegradable but process is very slow

Name 3 ways of disposing waste plastics

Burying in landfillBurning as fuelRecycling

Chemical Engineering /A-level Chemistry: 3.3.12 Polymers

A-level Chemistry: 3.3.12 Polymers

Chemical Engineering31 CardsCreated about 1 month ago

This set of flashcards covers condensation polymers, focusing on polyamides—their monomer components, the type of bond formed (amide link), examples such as Nylon 6,6 and Kevlar, and their common uses. It highlights the chemical basis and practical applications of these polymers.

Print Embed Import Report

Name 3 examples of condensation polymers

polyamides
polyesters
polypeptides

Tap to flipTap or swipe ↕ to flip

Space↑↓

←→Swipe ←→Navigate

SSpeak

FFocus

1/31

Key Terms

Term

Definition

Name 3 examples of condensation polymers

polyamides
polyesters
polypeptides

What are polyamides made out of?

Dicarboxylic acids + diamines

Polyamides

State the name of the bond that forms between the carboxyl
groups and amino groups

Amide link

Name 2 examples of polyamides

Nylon 6,6
Kevlar

State what nylon 6,6 is made from

1,6-diaminohexane + hexanedioic acid

Name some uses of nylon 6,6

Used to make clothing, carpet, rope, airbags and parachutes

Related Flashcard Decks

Chemical Engineering

Army Board - CBRN Part 4

This deck covers key questions and answers related to chemical, biological, radiological, and nuclear (CBRN) defense, focusing on tactics, detection, protection, and procedures.

32 cards

View Deck

Chemical Engineering

Army Board - CBRN Part 1

This deck covers key concepts and procedures related to Chemical, Biological, Radiological, and Nuclear (CBRN) defense as outlined in the Army Board guidelines.

25 cards

View Deck

Chemical Engineering

Pharm Y2S2 - Drying

This deck covers key concepts related to drying processes in pharmaceuticals, including definitions, mechanisms, and considerations for drying methods.

20 cards

View Deck

Chemical Engineering

NCO Promotion Board Study - CBRN

This deck covers key concepts and terminology related to Chemical, Biological, Radiological, and Nuclear (CBRN) defense, including protective measures and response protocols.

10 cards

View Deck

Chemical Engineering

US Army Promotion Board - CBRN Flashcards

This deck covers key concepts related to Chemical, Biological, Radiological, and Nuclear (CBRN) defense as relevant to the US Army Promotion Board, including procedures, terminology, and policies.

13 cards

View Deck

Chemical Engineering

Chemical Hair Relaxing and Curl Reformation

This deck covers key concepts and procedures related to chemical hair relaxing and curl reformation, including types of relaxers, application techniques, and hair conditions.

38 cards

View Deck

Study Tips

Press F to enter focus mode for distraction-free studying
Review cards regularly to improve retention
Try to recall the answer before flipping the card
Share this deck with friends to study together

A-level Chemistry: 3.3.12 Polymers

Term	Definition
Name 3 examples of condensation polymers	polyamides polyesters polypeptides
What are polyamides made out of?	Dicarboxylic acids + diamines
Polyamides State the name of the bond that forms between the carboxyl groups and amino groups	Amide link
Name 2 examples of polyamides	Nylon 6,6 Kevlar
State what nylon 6,6 is made from	1,6-diaminohexane + hexanedioic acid
Name some uses of nylon 6,6	Used to make clothing, carpet, rope, airbags and parachutes
Draw an equation showing how nylon 6,6 is formed
State what kevlar is made from	1,4-diaminobenzene and benzene-1,4-dicarboxylic acid
Name some uses of kevlar	Used in bulletproof vests, boat construction, car tyres and lightweight spots equipment
Draw an equation showing how kevlar is formed
What are polyesters made out of?	Dicarboxylic acids + diols
Polyesters State the name of the bond that forms between the carboxyl groups and hydroxyl groups	Ester link
Name an example of polyester	Terylene (PET)
State what terylene (PET) is made from	Benzene-1,4-dicarboxylic acid and ethane-1,2diol
Name some uses of terylene (PET)	Used in plastic bottles, clothing, sheets and sails
Condensation polymers are ______ than addition polymers	stronger & more rigid
Why are condensation polymers stronger & more rigid than addition polymers?	∵ made up of chains contains polar bonds e.g. C-N and C-O ∴ have Van der Waals forces, permanent dipole-dipole forces and hydrogen bonds between polymer chains
Why are polyalkenes (addition polymers) non-biodegradable and won’t react when being used?	Have non-polar C-C bonds = unreactive and chemically inert
Why are condensation polymers biodegradable?	polar bonds (e.g. C=O) in chains = open to attack by nucleophiles ∴ can be broken down by hydrolysis ∴ are biodegradable but process is very slow
Name 3 ways of disposing waste plastics	Burying in landfill Burning as fuel Recycling
When are plastics placed in landfills?	When plastic is: Difficult to separate from other waste Not in sufficient quantities to make separation financially worthwhile Too difficult technically to recycle
Name an advantage of using landfills to dispose plastics	Landfill is cheap and easy method of waste disposal
Name 3 disadvantages of using landfills to dispose plastics	Requires areas of land As waste decomposes, can release methane = greenhouse effect Leaks from landfill contaminate water supplies
What is an advantage of burning plastics (excluding its cost and ease)?	Heat can be used to generate electricity
Why when burning waste plastics, does the process need to be carefully controlled?	To reduce release of toxic gases e.g. polymers that contain chlorine (PVC) produce HCl when burned = has to be removed
Burning Waste Plastics How is the release of toxic gases reduced?	Waste gases from combustion as passed through scrubbers which neutralise gases like HCl by allowing them to react with a base
What is a disadvantage of burning waste plastics?	Waste gases e.g. CO2 will still contributed to greenhouse effect
Name 2 ways to recycle plastics	Some plastics can be melted and remoulded Some plastics can be cracked into monomers & these can be used to make more plastics or other chemicals
Name 4 advantages of recycling waste plastics	Reduces amount of waste going into landfill Saves raw materials, oil = non-renewable Cost of recycling plastics is lower than making plastics from scratch Produces less CO2 emissions than burning plastic
Name 4 disadvantages of recycling waste plastics	It is technically difficult to recycle plastics Collecting, sorting and processing plastic is more expensive than burning/landfill Often can't remake the plastic you started with, have to make something else Plastic can be easily contaminated during the recycling process
	1,4-butanedioic acid

A-level Chemistry: 3.3.12 Polymers

Name 3 examples of condensation polymers

Key Terms

Related Flashcard Decks

Study Tips

Company

Explore

Study Tools