Silicon has a strong tendency to form polymer | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The chain length of silicone polymers is controlled by adding $Me_{3}SiCl$ (trimethylchlorosilane).$Me_{3}SiCl$ acts as a chain terminator because

Vedclass · Accepted Answer

$Me_3SiCl$

Vedclass · Answer

(C) The chain length of silicone polymers is controlled by adding $Me_{3}SiCl$ (trimethylchlorosilane).$Me_{3}SiCl$ acts as a chain terminator because it has only one chlorine atom,which can react with the silanol group to block the end of the polymer chain.The reaction is as follows:$Me_{3}SiCl + H_{2}O \rightarrow Me_{3}SiOH + HCl$This $Me_{3}SiOH$ unit caps the growing polymer chain,preventing further polymerization and thus controlling the chain length.

Silicon has a strong tendency to form polymers like silicones. The chain length of silicone polymers can be controlled by adding:

Similar Questions

The $C-C$ bond length is maximum in?

The group $14$ elements $A$ and $B$ have the first ionisation enthalpy values of $708$ and $715 \ kJ \ mol^{-1}$ respectively. These values are the lowest among their group members. The nature of their ions $A^{2+}$ and $B^{4+}$ respectively is:

Which of the following is an example of a neutral oxide?

The main reason that $SiCl_{4}$ is easily hydrolysed as compared to $CCl_{4}$ is that

$Si_2O_7^{6-}$ anion is obtained when

Vedclass Test Series

Exam Paper Generator

Online Exam Module