Biodegradable Polymers
Chapter Name : Polymers |
Sub Topic Code : 102_12_15_05_01 |
Topic Name : Biodegradable Polymers |
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Sub Topic Name : Biodegradable Polymers |
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Introduction
1.Due to the environmental concerns, certain new biodegradable synthetic polymers have been designed and developed. 2.These polymers contain functional groups similar to the functional groups present in bio-polymers. 3.Aliphatic polyesters are one of the important classes of biodegradable polymers. 4. PHBV is obtained by the co-polymerization of 3-hydroxybutanoic acid and 3 - hydroxypentanoic acid. 5. PHBV is used in specialty packaging, orthopedic devices and in controlled release of drugs. 6. PHBV is degraded by bacteria in the environment. 7. Nylon-2, nylon-6 is an alternating poly-amide co-polymer of glycine (H2N–CH2–COOH) and amino caproic acid [H2N (CH2)5 COOH] and is biodegradable.
Pre-Requisites:
Elements, compounds, molecules, molecular mass
Activity:
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Real Life Question:
How is plastic made?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| polymerization. | The process of formation of polymers from respective monomers |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| plastic | Plastic is a polymer |
Real life uses :
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Places to visit :
Departmental store
Practical examples around us
| Examples | Explainations |
|---|---|
| Plastic toys, buckets | All are made of polymers |
What you learn in Theory:
1.Due to the environmental concerns, certain new biodegradable synthetic polymers have been designed and developed. 2.These polymers contain functional groups similar to the functional groups present in bio-polymers. 3.Aliphatic polyesters are one of the important classes of biodegradable polymers. 4. PHBV is obtained by the co-polymerization of 3-hydroxybutanoic acid and 3 - hydroxypentanoic acid. 5. PHBV is used in specialty packaging, orthopedic devices and in controlled release of drugs. 6. PHBV is degraded by bacteria in the environment. 7. Nylon-2, nylon-6 is an alternating poly-amide co-polymer of glycine (H2N–CH2–COOH) and amino caproic acid [H2N (CH2)5 COOH] and is biodegradable.
What you learn in Practice:
Polymers have a variety of uses