The straight chain polymer is formed by:

1. hydrolysis of $\mathrm{CH}_{3} \mathrm{SiCl}_{3}$ followed by condensation polymerisation
2. hydrolysis of $\left(\mathrm{CH}_{3}ight)_{4}$ Si by addition polymerisation
3. hydrolysis of $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{SiCl}_{2}$ followed by condensation polymerisation
4. hydrolysis of $\left(\mathrm{CH}_{3}ight)_{3} \operatorname{SiCl}$ followed by condensation polymerisation

Solution

Hydrolysis of substituted chlorosilanes yield corresponding silanols which undergo polymerisation.

Polymerisation of dialkyl silandiol yields linear thermoplastic polymer.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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