silane coupling agent

What is the difference between organosilyl, alkoxysilane and silane compounds

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Silane is the equivalent of methane for silicon, SiH4SiHX4. Silicon containing organic derivatives of many kinds exist. Generally speaking, organosilanes are those in which Si−CSi−C bonds exist, like for example, tetramethylsilane (TMSTMS, used as a reference on 1H NMRX1X221H NMR).


Alkoxysilanes are those compounds that contains an organic group bonded to a silicon but not directly, through an oxygen atom instead, like so: R−OSi(Me)3R−OSi(Me)X3, common structure on silyl enol ethers.


A surface is hydrophobic if it’s repulsions towards water overcome its attractions, and this is the case for many silicon compounds, but not all of them. For example, glass (silicon dioxide, SiO2SiOX2) is hydrophilic, due to the possibility of formation of hydrogen bonds between the glass oxygen and water molecules.


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