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Silicone resins are made by:...

Silicone resins are made by:

A

dissolving a mixture of `PhSiCl_(3)` and `(Ph)_(2)SiCl_(2)` in toluene and then hydrolysis with water.

B

hydolysing a mixture of `(CH_(3))_(2)SiCl_(2)` and `(CH_(3))_(3)SiCl`

C

hydrolysis of `(CH_(3))_(2)SiCl_(2)`

D

none

Text Solution

AI Generated Solution

The correct Answer is:
To determine how silicone resins are made, we will analyze the options provided in the question step by step. ### Step 1: Understanding Silicone Resins Silicone resins are polymers that contain silicon-oxygen bonds and are typically characterized by a three-dimensional network structure. They often have phenyl groups attached to the silicon atoms, which contribute to their properties. ### Step 2: Analyzing the Options 1. **Option 1**: Dissolving a mixture of PhCl3 (phenyl trichlorosilane) and Ph2SiCl2 (diphenyl dichlorosilane) in toluene followed by hydrolysis with water. - This option suggests a reaction involving phenyl groups, which is consistent with the structure of silicone resins. 2. **Option 2**: Hydrolyzing a mixture of dimethylsilicon dichloride and trimethylsilicon chloride. - While this can produce long-chain silicates, the presence of a monochloro derivative may hinder the growth of the polymer chain, leading to incomplete resin formation. 3. **Option 3**: Hydrolysis of dimethylsilicon dichloride. - This reaction would not yield the desired silicone resin structure, as it would lead to a simpler chain without the necessary phenyl groups. 4. **Option 4**: None of the above. - This option suggests that none of the previous methods are correct, which we will evaluate based on our analysis. ### Step 3: Conclusion After analyzing the options: - **Option 1** is the most suitable method for producing silicone resins as it involves the correct precursors (phenyl groups) and the appropriate solvent (toluene) followed by hydrolysis. - The other options do not yield the desired silicone resin structure. **Final Answer**: Silicone resins are made by **Option 1**: dissolving a mixture of PhCl3 and Ph2SiCl2 in toluene and then hydrolysis with water. ---
To determine how silicone resins are made, we will analyze the options provided in the question step by step. ### Step 1: Understanding Silicone Resins Silicone resins are polymers that contain silicon-oxygen bonds and are typically characterized by a three-dimensional network structure. They often have phenyl groups attached to the silicon atoms, which contribute to their properties. ### Step 2: Analyzing the Options 1. **Option 1**: Dissolving a mixture of PhCl3 (phenyl trichlorosilane) and Ph2SiCl2 (diphenyl dichlorosilane) in toluene followed by hydrolysis with water. - This option suggests a reaction involving phenyl groups, which is consistent with the structure of silicone resins. ...
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