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Chemistry in Everyday Life — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryChemistry in Everyday Life2 Marks
Question
What are biodegradable polymers? Give examples.
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Answer

1. The materials that are readily decomposed by microorganisms in the environment are called biodegradable.

2. Natural polymers degrade on their own after a certain period of time but synthetic polymers do not.

3. The biopolymers which disintegrated by themselves in biological systems during a certain period of time by enzymatic hydrolysis and to some extent by oxidation are called biodegradable polymers.

Examples:

  1. Polyhydroxy butyrate (PHB)
  2. Polyhydroxy butyrate-co-hydroxyl valerate (PHBV)
  3. Polylactic acid (PLA)

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