• # question_answer 46) If the starting material for the manufacture of silicones is$RSiC{{l}_{3}}$, write the structure of the product formed.

The hydrolysis of $RSiC{{l}_{3}}$ gives a cross-linked polymer. $Cl-\underset{\underset{\text{Cl}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\overset{\overset{\text{R}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{\text{Si}}}}\,-Cl+3{{H}_{2}}O\xrightarrow{-3HCl}HO-\underset{\underset{\text{OH}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\overset{\overset{\text{R}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{\text{Si}}}}\,-OH$ $nHO-\underset{\underset{\text{OH}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\overset{\overset{\text{R}}{\mathop{\text{ }\!\!|\!\!\text{ }}}\,}{\mathop{\text{Si}}}}\,-OH\xrightarrow[-(n-1){{H}_{2}}O]{Polymerisation}$