During the processing of silicone rubber, a significant issue is the potential for excessive structuring between polymer chains, which can impair the material's processing and storage characteristics. Consequently, the addition of appropriate structure control agents is required in certain silicone rubber systems.

Diphenylsilanediol serves to mitigate this structuring phenomenon and enhance the processing performance of the silicone rubber.

Chemically, diphenylsilanediol features two Si–OH groups. These hydroxyl groups are reactive and can participate in condensation reactions and interactions within the siloxane system; simultaneously, the two phenyl groups influence intermolecular forces and the final structure of the material.

Therefore, the value of CAS 947-42-2 in silicone rubber systems differs from that of conventional inert fillers. It is a reactive organosilicon material capable of participating in or influencing the formation of the siloxane structure.

Beyond its role in controlling silicone rubber structure, diphenylsilanediol is used in the synthesis of phenyl silicone oils, phenyl silicone resins, and phenyl silicone rubbers. It is also being investigated for use in modifying materials such as epoxy resins, polyurethanes, and acrylic resins.

Thus, when sourcing CAS 947-42-2 for silicone rubber production, companies must determine the appropriate dosage and processing conditions based on the specific rubber system, rather than simply treating it like a standard filler.