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प्रश्न
What is the role of t-butyl peroxide in the polymerization of ethene?
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उत्तर
In polymerisation of ethene, source of free radical is needed to initiate the chain reaction. Such free radicals are usually produced by decomposition of peroxides like t-butyl peroxide or benzoyl peroxide.
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संबंधित प्रश्न
How are polythene and neoprene prepared?
Write the mechanism of free radical polymerization of ethene.
Write the free radical mechanism for the polymerisation of ethene.
Which of the following statements is not true about low-density polythene?
What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.
Match the polymers given in Column I with the preferred mode of polymerisation followed by their monomers.
| 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 |
Assertion: Olefinic monomers undergo addition polymerisation.
Reason: Polymerisation of vinyl chloride is initiated by peroxides/ persulphates.
Low density polythene and high density polythene, both are polymers of ethene but there is marked difference in their properties. Explain.
Which of the following is chain-growth polymer?
Which one of the following polymers are prepared by addition polymerisation?
