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42499 Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 2000

CAS Number
9016-00-6
Synonyms

Stock No. Size Price ($) Quantity Availability
42499-AD 50ml 19.40
42499-AK 250ml 43.40
42499-K2 1L 112.00
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Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 2000

MDL
MFCD00148360

Chemical Properties

Formula
(CH3)3SiO(Si(CH3)2O)nSi(CH3)3
Form
Liquid
Melting point
<-40°
Boiling Point
>205°
Flash Point
232°(450°F)
Density
0.966
Refractive Index
1.4000
Storage & Sensitivity
Ambient temperatures.
Solubility
Slightly miscible with water. Immiscible with methanol and ethylene glycol.

Applications

Polydimethylsiloxane, trimethylsiloxy terminated is widely used as a common surfactant. It is an active component of defoamers which suppresses the formation of foams and is a critical ingredient in water-repelling coatings as an active silicone fluid. It finds application in optic telecommunications, biomedical research, elasticity of polymer networks, adhesive materials and in skin-moisturizing lotions. Furthermore, it is used as a filler fluid in breast implants and as a sorbent for the analysis of headspace (dissolved gas analysis) of food.

Notes

Viscosity 20 centistokes Incompatible with strong oxidizing agents.

Literature References

Risse, S.; Kussmaul, B.; Krüger, H.; Kofod, G. Synergistic improvement of actuation properties with compatibilized high permittivity filler. Adv. Funct. Mater. 2012, 22 (18), 3958-3962.

Vaulot, C.; Ziegler, P.; Haidar, B. Physicochemical driving forces behind exfoliation process of a synthetic montmorillonite in PDMS polymers. Polymer 2011, 52 (3), 700-707.

Sangermano, M.; Marchi, S.; Meier, P.; Kornmann, X. UV-activated hydrosilation reaction for silicone polymer crosslinking. J. Appl. Polym. Sci. 2013, 128 (3), 1521-1526.

Other References

Harmonized Tariff Code
3910.00
TSCA
No
RTECS
TQ2690000

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