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Questions and Answers
What is the main factor that determines the nature of a silicone polymer?
What is the main factor that determines the nature of a silicone polymer?
- Length of the alkyl group
- Thermal conductivity
- Extent of cross-linking (correct)
- Presence of oxygen atoms
Which type of silicones are bridged together by methylene or similar groups?
Which type of silicones are bridged together by methylene or similar groups?
- Cross-linked silicones
- Linear silicones
- Silicone resins (correct)
- Cyclic silicones
How are cyclic silicones obtained?
How are cyclic silicones obtained?
- By hydrolysis of R2SiCl2 (correct)
- By blending with organic resins
- By the condensation of dialkyl or diaryl silicon chlorides
- By hydrolysis of RSiCl3
What property makes all silicones water repellent?
What property makes all silicones water repellent?
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Which type of silicones are obtained by blending with organic resins such as acrylic esters?
Which type of silicones are obtained by blending with organic resins such as acrylic esters?
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What determines whether silicone polymers range from oily liquids to rubber-like solids?
What determines whether silicone polymers range from oily liquids to rubber-like solids?
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What makes the viscosity of silicone oil remain constant and not change with temperature?
What makes the viscosity of silicone oil remain constant and not change with temperature?
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Which type of silicones are obtained by the hydrolysis and subsequent condensation of dialkyl or diaryl silicon chlorides?
Which type of silicones are obtained by the hydrolysis and subsequent condensation of dialkyl or diaryl silicon chlorides?
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