HYDROXY TERMINATED POLYBUTADIENE(CAS: 69102-90-5)

Hydroxy Terminated Polybutadiene (HTPB) is a flexible polymer with a glass transition temperature around -60°C. It has a high molecular weight, typically ranging from 10,000 to 200,000 g/mol. HTPB has good solubility in organic solvents like toluene and poor water solubility. It is reactive due to terminal hydroxyl groups, which can undergo condensation or esterification reactions.

HTPB is synthesized by a ring-opening polymerization of 1,3-butadiene followed by hydroxylation at the terminal ends. This process can be catalyzed using metal complexes such as platinum or selenium. The polymerization typically yields 90-95% selectivity with high yield.

HTPB is widely used in aerospace and defense industries for rocket propellant binders. It is also utilized in the pharmaceutical industry as a carrier for drugs and in the polymer industry for coatings and adhesives. Additionally, it is used in sensors and semiconductors for its thermal and mechanical stability.

When handling HTPB, wear appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coat. Work in a well-ventilated area or fume hood. Spills should be cleaned up with appropriate absorbents and disposed of according to local regulations. Refer to the Safety Data Sheet (SDS) for detailed information on handling and storage.