1.

Explain the types of silicones.

Answer»

Solution :(i) Linear silicones: They are obtained by the hydrolysis and subsequent condensation of dialkyl or diaryl silicon chlorides.
(a) Silicon RUBBERS: These silicones are bridged together by methylene or similar groups.
(B) Silicon RESINS: They are obtained by blending silicones with organic resins such as acrylic ESTERS.
(ii) Cyelic silicones: These are obtained by the hydrolysis of `R_(2)SiCl_(2)`
(III) Cross linked silicones: They are obtained by hydrolysis of `RSiCl_(3)`


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