Dimethyldimethoxysilane
| Chemical Name: | Dimethyldimethoxysilane |
| Product Category: | Alkyl & Alkoxy Silanes | Silane Coupling Agent |
| CAS NO.: | 1112-39-6 |
| Formula: | C4H12O2Si |
| EINECS: | 214-189-4 |
| Molecular Weight: | 120.22 |
| Molecular Formula: |  |
| Boiling Point: | 81.4 °C(lit.) |
| Density: | 0.88 g/mL at 25 °C(lit.) |
Dimethyldimethoxysilane Description
Dimethyldimethoxysilane (DMDMS), also known as Dimethoxydimethylsilane, is a monomeric alkoxy silane with two methyl groups. It hydrolyzes rapidly to form highly reactive silanols and is an equivalent to Dow Corning Z-6194 or ShinEtsu KBM-22.
This silane is used as a resin modifier or additive in silicone resins, a structure control agent and chain extender in silicone rubbers to enhance mechanical properties and shelf life, a surface modifier for silica, inorganic fillers, pigments, and glass, and a key component in polyurethane crosslinked silica aerogels.
Packaging Specifications
| Product Name | Dimethyldimethoxysilane |
| Synonyms | dimethoxydimethyl-; DIMETHOXYDIMETHYLSILANE; DMDMS;DMDMOS; dimethoxydimethyl-silan; kbm22; KBM 22; CD5605; Z-6194; tsl8112 |
| Appearance | Colorless to Almost colorless |
| Melting point | -80°C |
| vapor pressure | 7-12790Pa at 20-25℃ |
| Refractive index | n20/D 1.369(lit.) |
| Specific Gravity | 0.88 |
| Application | Used in the synthesis of macroporous silica aerogels, hollow silica nanoparticles for near-infrared photodynamic and photothermal therapy, and high-permittivity dielectric silicone elastomers. |
| Package | Fluorinated HDPE plastic containers, 100ml~1L Plastic pails, 5L~200L Metal drums, 20L~200L IBC containers Please contact Silico team for any special packaging request. |
| Storage | Store below +30°C. |
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Dimethyldimethoxysilane (DMDMS) Guide
Dimethyldimethoxysilane (DMDMS) is an alkoxy silane with two methyl groups. It hydrolyzes quickly, forming reactive silanols and is used in various applications.
Applications
- Silicone Resins: Acts as a resin modifier or additive, enhancing performance in coatings and adhesives.
- Silicone Rubber: Works as a chain extender, improving mechanical properties and extending shelf life.
- Surface Modification: Used for treating silica, fillers, pigments, and glass to improve bonding and dispersion.
- Advanced Materials: Key for crosslinked silica aerogels and in preparing nanoparticles for photodynamic therapy.
- Electronics: Enhances dielectric properties in silicone elastomers for electronic applications.
