15.7 What are natural and synthetic polymers? Give two examples of each type.
15.7 What are natural and synthetic polymers? Give two examples of each type.
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1 Answer
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15.7 Based on source, polymers can be classified as below:
Natural polymers: Those polymers obtained from plants and animals such as proteins, cellulose, starch and other resins.
Semi Natural polymers: Those polymers that are derivatives of natural polymers fall under this category. Cellulose Nitrate used as a propellant and in guncotton and Cellulose Acetate used in photography are prepared from Cellulose.
Synthetic polymers: Those polymers which are prepared in the laboratory are called synthetic Bakelite, Polythene, synthetic fibers and rubbers are some of its examples.
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