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alpha-silane-ls-am121-cas-no-23432-65-7
alpha-silane-ls-am121-cas-no-23432-65-7

Alpha Silane LS-AM121
CAS NO.: 23432-65-7

LS-AM121 exhibits high reactivity toward moisture due to the close structural proximity of the nitrogen and silicon atoms (alpha-effect). AM121 plays a crucial role in formulations that cure extremely fast at ambient temperature when exposed to atmospheric moisture. This is particularly relevant for systems where alpha-organofunctional terminal groups act as crosslinkers. Incorporating AM121 significantly enhances storage stability. It is particularly well-suited for manufacturing highly flexible materials with a low elastic modulus. This is because the dialkoxysilyl group serves as a chain extender during the prepolymer curing process, leading to a lower level of crosslinking.


Description of Alpha Silane LS-AM121


Chemical Name

[(Methylcarbamato)methyl]dimethoxymethylsilane

Synonyms

Methyl N-[[(dimethoxy)(methyl)silyl]methyl]carbamate; N-[Dimethoxymethylsilyl)methyl]-O-methyl carbamate

Equivalents

Geniosil XL 65

Molecular Formula

C6H15NO4Si

Molecular Weight

193.27

CAS NO.

23432-65-7

EINECS NO.

457-690-5


Typical Technical Properties of Alpha Silane LS-AM121


Appearance

Colorless transparent liquid

Purity(%)

≥97

Refractive Index (25°C)

1.4300-1.4400

Flash Point

82°C

Boiling Point

213°C

Density(25°C, g/cm3)

1.05-1.15


Applications of Alpha Silane LS-AM121


LS-AM121 is used as a water scavenger in the production of moisture-curing adhesive and sealant formulations. It is important particularly in systems using highly reactive silane-modified polymers based on alpha-organofunctional silanes(eg STP M310). As a bifunctional silane, AM121 functions additionally as a chain extender and is thus ideally suited for highly flexible products.


Package & Storage of Alpha Silane LS-AM121


  • In 25kg pail, 200kg drum, 1000kg IBC.

  • Keep in cool, dry and ventilated place. Keep away from sunlight and fire sources. Keep away from acid and alkali. Keep in unopened containers.

  • Storage beyond the shelf life does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.


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