1. Classification: conventional hydrogen containing silicone oil includes end hydrogen containing silicone oil and side hydrogen containing silicone oil (suspended hydrogen based silicone oil).
2. Synthesis:
Synthesis method of hydrogen terminated silicone oil: tetramethyldihydrodisiloxane is used as hydrogen terminated capping agent, DMC, D4 and other cyclics are used as chain extenders, and ring opening polymerization is carried out under the catalysis of acid catalyst to generate hydrogen terminated silicone oil of various molecular weights.
Synthesis method of side hydrogen containing silicone oil:
① , ring opening polymerization is carried out by D4H ring, D4, DMC, etc. under the action of broken catalyst.
② The ring opening polymerization is carried out by silicon oil with high hydrogen content, D4, DMC, etc. under the action of broken catalyst.
③ , methyl dichlorosilane and trimethylchlorosilane are co hydrolyzed and polycondensated, and then equilibrium polymerization is carried out under the action of acid catalyst.
3. Application:
① The hydrogen terminated silicone oil can be used as the raw material of linear modified silicone oil to prepare polyether modified silicone oil, ternary block copolymer silicone oil and other products, which can be used as textile softener, leather finishing agent, etc.
② Hydrogen containing silicone oil can generally be used as curing agent of silicone resin and rubber. Common products include silicone adhesive, silicone release agent, silicone rubber products, etc.

For Hydrogen silicone oil, please check the details:
https://www.htvsilicone.com/product-methyl-low-hydrogen-silicone-oil-iota203.html