The Role of Chemists in Minimising Environmental Waste by the Development of Degradable Polymers
A mindmap about the role of chemists in minimising environmental waste through the development of degradable polymers.
- Created by: BiologyStar123
- Created on: 25-10-12 15:35
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- The Role of Chemists in Minimising Environmental Waste by the Development of Degradable Polymers
- Definitions
- BIODEGRADABLE POLYMER
- A polymer that breaks down completely into carbon dioxide and water.
- DEGRADABLE POLYMER
- A polymer that breaks down into smaller fragments when exposed to light, heat or moisture.
- BIODEGRADABLE POLYMER
- Scientists have begun to investigate and develop renewable & sustainable polymers for packaging due to...
- Customer Demand
- Environmental Pressures
- The Spiralling Cost of Crude Oil
- Biodegradable polymers often have chemical bonds that can undergo hydrolysis...
- E.g.poly(lactic acid)
- made from lactic acid
- derived from corn starch
- used for ..
- compost bags
- disposable tableware
- food packaging
- made from lactic acid
- E.g. poly(glycolic acid)
- made from glycolic acid
- isolated from sugar cane and unripe grapes
- used in surgery for stitches
- made from glycolic acid
- E.g. synthetic biodegradable polyesters
- made from cellulose and potato starch
- used for thermoformed trays
- used for disposable cups, bowls and plates
- E.g.poly(lactic acid)
- Photodegradable Polymers
- These polymers are designed to become weak and brittle during prolonged exposure to sunlight.
- can be made by...
- can be made by...
- These polymers are designed to become weak and brittle during prolonged exposure to sunlight.
- Definitions
- E.g.poly(lactic acid)
- made from lactic acid
- derived from corn starch
- used for ..
- compost bags
- disposable tableware
- food packaging
- made from lactic acid
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