Superabsorbent Polymers

What is a superabsorbent polymer (SAP) also known as?

• Slush powder

• Magic gel

• Water beads

• Hydro foam

Tags

NGSS.MS-PS1-3

How much water can a superabsorbent polymer absorb relative to its own mass?

• Up to 400 times

• Up to 300 times

• Up to 200 times

• Up to 100 times

What affects a SAP's ability to absorb water?

• Color of the water

• Presence of light

• Ionic concentration of the solution

• Temperature of the water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is the main use of superabsorbent polymers?

• In water filtration systems

• In construction

• In personal disposable hygiene products

• In agriculture

What were water-absorbing materials made from before the 1920s?

• Rubber

• Plastic

• Fiber-based products

• Silica gel

What is the most common type of SAP made in the world today?

• Polyacrylamide copolymer

• Sodium polyacrylate

• Starch grafted copolymer of polyacrylonitrile

• Ethylene maleic anhydride copolymer

What is the method called that uses UV radiation to drive polymerization and cross-linking reactions?

• Suspension polymerization

• Hydrogel formation

• Gel polymerization

• Solution polymerization

Tags

NGSS.HS-PS4-3

What property is measured as Absorbency Under Load (AUL)?

• The polymer's ability to swell under pressure

• The polymer's color change under pressure

• The polymer's temperature resistance

• The polymer's electrical conductivity

What was the 'Super Slurper'?

• A type of sponge

• A brand of diapers

• A superabsorbent polymer developed by the USDA

• A water filtration system

Tags

NGSS.MS-PS1-3

What is the effect of valence cations on SAP's water absorption?

• Changes the color of the SAP

• Increases absorption

• No effect

• Decreases absorption

Tags

NGSS.HS-PS1-2