Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?
Correct answer: D. Camphor
- A. Glycerol
- B. Nitro cellulose
- C. None of these
- D. Camphor
Explanation
Celluloid is cellulose nitrate plasticised with camphor, which reduces intermolecular attraction and suppresses crystallisation, making the material flexible. Nitrocellulose is the base polymer, not the crystallisation-preventing additive.
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