Other peculiar advantages are he low toxicity and viscosity of the vinyl ether monomer nd the absence of oxygen inhibition, which can be xplained by the lack of reactivity of the propagating carbocation
The coupling efficiency of the silane to the natural rubber is influenced by the stability of the carbocation intermediate that is formed during the reaction.
Increasing the stability of the carbocation improves the chemical bonding of the silane with the natural rubber.
The benzyl chloride is the most reactive, because the carbocation intermediate formed is stabilized by resonance into the aromatic group.
In addition, the active carbocation
is stabilized through interactions with the counter anion and/or interactions with Lewis base additives present in the polymerization system.
A reaction mechanism during the preparation was proposed, and the electron effect on the stabilization of the carbocation was discussed.
Finally, aniline reacts with the resulting carbocation via a regioselective nucleophilic substitution yielding DOPO-PHM.
The stabilization of carbocation is important to the reaction process.
in organic synthesis.