Advertisements
Advertisements
Question
What is the role of t-butyl peroxide in the polymerization of ethene?
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Which of the following statements is not true about low-density polythene?
Out of chain growth polymerisation and step growth polymerisation, in which type will you place the following.
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 their chemical names given in Column II.
| Column I | Column II |
| (i) Nylon 6 | (a) Polyvinyl chloride |
| (ii) PVC | (b) Polyacrylonitrile |
| (iii) Acrilan | (c) Polycaprolactum |
| (iv) Natural rubber | (d) Low-density polythene |
| (v) LDP | (e) cis-polyisoprene |
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 |
By which reaction ethene is obtained from ethyne?
Which one of the following can be used as monomer in a polymerisation reaction?
The Ziegler Natta catalyst are
\[\ce{X + C + Cl2 ->[High temperature][of about 1000 K] Y + CO}\];
\[\ce{Y + 2H2O -> Z + 2HCl}\]
Compound Y is found in polymeric chain structure and is an electron-deficient Molecule. Y must be:
Which of the following statements about low density polythene is false?
