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प्रश्न
Why should the monomers used in addition polymerisation through free radical pathway be very pure?
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उत्तर
Pure monomers are required because even the traces of impurities may act as initiators which leads to the formation of polymers of small chain lengths.
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संबंधित प्रश्न
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Write the mechanism of free radical polymerization of ethene.
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Write the free radical mechanism for the polymerisation of ethene.
Write chemical reaction to prepare the Dextron polymer:
Dextron
Which of the following statements is not true about low-density polythene?
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Match the polymer of column I with correct monomer of column II.
| Column I | Column II |
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| (iii) Natural rubber | (c) Chloroprene |
| (iv) Teflon | (d) Acrylonitrile |
| (v) Acrilan | (e) Ethene |
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| Column I | Column II |
| (i) Nylon-6,6 | (a) Free radical polymerisation |
| (ii) PVC | (b) Ziegler-Natta polymerisation or coordination polymerisation |
| (iii) HDP | (c) Anionic polymerisation |
| (d) Condensation polymerisation |
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