1,3-bis(3-glycidoxypropyl)tetramethyldisiloxane CAS#126-80-7
1,3-Bis(3-glycidoxypropyl)tetramethyldisiloxane (CAS#126-80-7) is an organosilicon compound bearing epoxy functional groups. It is a colorless to pale yellow transparent liquid. Its density is roughly 0.996 g/mL at 20°C, and the boiling point is 184°C under 2 mmHg. This substance finds broad application in functional polymer synthesis and material modification.
1,3-bis(3-glycidoxypropyl)tetramethyldisiloxane Chemical Properties
| Melting point | <0°C |
| Boiling point | 184 °C2 mm Hg(lit.) |
| density | 0.996 g/mL at 20 °C(lit.) |
| refractive index | n20/D 1.452 |
| Fp | 110°C |
| Specific Gravity | 0.996 |
| Hydrolytic Sensitivity | 3: reacts with aqueous base |
| BRN | 223966 |
| InChI | InChI=1S/C16H34O5Si2/c1-22(2,9-5-7-17-11-15-13-19-15)21-23(3,4)10-6-8-18-12-16-14-20-16/h15-16H,5-14H2,1-4H3 |
| InChIKey | MFIBZDZRPYQXOM-UHFFFAOYSA-N |
| SMILES | [Si](C)(C)(CCCOCC1CO1)O[Si](C)(C)CCCOCC1CO1 |
| EPA Substance Registry System | 1,1,3,3-Tetramethyl-1,3-bis[3-glycidyloxypropyl]disiloxane (126-80-7) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| F | 46316 |
| TSCA | Yes |
Primary Applications
Synthesis of Polysiloxane-amines: It serves as a starting raw material to synthesize functional polysiloxane-amines via amine‑epoxy click polymerization.
Fuel Cell Membranes: It is utilized for manufacturing polymer electrolyte membranes (PEMs) used in fuel cells.
Bifunctional Epoxy Modification: It acts as a siloxane‑type crosslinker and modifier with terminal diepoxy groups.
