Chemistry C1 5.3 New and useful polymers.

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Why are materials scientists designing new polymers all the time?
To make materials with special properties for particular uses, such as packaging, clothing and medical applications.
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Why have new polymer materials been developed for dental fillings?
To replace fillings that contain mercury.
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What are light-sensitive polymers used in?
Sticking plasters to cover wounds so the plasters can be easily removed.
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What are hydrogels?
Polymers that can trap water and have many uses including dressing for wounds and nappies.
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What are shape-memory polymers?
Polymers that change back to their original shape when temperature or other conditions are changed, such as a material used for stitching wounds would change shape when heated to body temperature.
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What an be done to make fabrics waterproof and breathable?
The fibres used to make fabrics can be coated with polymers to make them breathable and waterproof.
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What can the plastic used to make many drinks bottles be recycled to make?
Polyester fibres for clothing as well as filling pillows and duvets.
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What medical and non-medical uses are there for polymers?
Dental fillings, removable sticking plasters, wound dressings, stitches, packaging, waterproof fabrics, containers, bottles, clothing, fibres for duvets, water-holding composts.
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What is a polymer that changes in response to changes in their environment?
A smart polymer.
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Other cards in this set

Card 2

Front

Why have new polymer materials been developed for dental fillings?

Back

To replace fillings that contain mercury.

Card 3

Front

What are light-sensitive polymers used in?

Back

Preview of the front of card 3

Card 4

Front

What are hydrogels?

Back

Preview of the front of card 4

Card 5

Front

What are shape-memory polymers?

Back

Preview of the front of card 5
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