Give an example of natural and synthetic polymers.
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Answer:
Based on the source polymers are classified as natural, semisynthetic and synthetic polymers.
1) Natural polymers : These polymers are obtained either from plants or animals. e.g.. cellulose. jute, linene. rubber, silk.
2) Semisynthetic polymers The fibres obtained by giving special chemical treatment to natural fibres (cellulose) and further regenerated are called semisynthetic polymers e-g., acetate rayon, viscose rayon, cuprammonium silk.
3) Synthetic polymers : The man made fibres prepared by polymerization of one monomer or copolymerization of two or more monómers are called synthetic polymers. e.g, nylon, terylene, polythene, etc.
⟹ Natural polymers are polymers that are found in nature. They are formed by plants and animals. Examples include protein, cellulose, starch, etc. Synthetic polymers are polymers made by human beings⋆
⟹ .Synthetic fibre, man-made textile fibre produced entirely from chemical substances, unlike those man-made fibres derived from such natural substances as cellulose or protein. ⋆