Answer:
On the basis of source polymers
are classified as :
(i) Natural
polymers : Found in plants and animals e.g. Proteins, cellulose,
starch, etc.
(ii) Semi
synthetic : Cellulose derivatives.
e.g.
Cellulose acetate (rayon) and cellulose nitrate.
(iii) Synthetic
: e.g. Plastic, nylon-6.6, Buna-S.
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