Complex sentence: The process is undertaken at low pH in the presence of a surface-active molecule, with the hydrolysis step being completed with the formation of a microemulsion before adding sodium fluoride to start the condensation process.
Split into simpler sentences: The process is undertaken at low pH in the presence of a surface-active molecule. The hydrolysis step is completed with the formation of a microemulsion before adding sodium fluoride to start the condensation process.