dimethyl polysiloxane

di·meth·yl pol·y·si·lox·ane

(dī-mĕth′əl pŏl′ē-sĭ-lŏk′sān′)
A polymer composed of alternating silicon and oxygen atoms and having two methyl groups attached; it can, depending on molecular weight, have properties ranging from oils to plastics.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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It entails topically applying to the skin a silicone-based gel comprising cyclic dimethyl polysiloxane; Transforming growth factor at a concentration of from 1 to 50 pg/ml; Epidermal Growth Factor (EGF) at a concentration of from 1 to 50 pg/ml; Basic Fibroblast Growth Factor (FGF) at a concentration of from 0.5 to 25 pg/ml; and Palmitoyl-Gly-His-Lys and SEQ ID No: 1 Palmitoyl-Gly-Glu-Pro-Arg, in a cosmetically-acceptable vehicle.
The GC column was a Restek capillary column, 30 m x 0.25 mm ID x 0.25 [micro]m, Restek Rtx-5MS Cross bond 5% diphenyl-95% dimethyl polysiloxane (Restek, Bellefonte, PA).
The incident report states, 'Heat transfer fluids, such as Syltherm (a dimethyl polysiloxane), can present hazards when their vapours can form flammable atmospheres and come in contact with an ignition source.
The bladder coating is formulated with dimethyl polysiloxane lubricants, but at quantities not enough to provide continuous lubrication beyond several cures.
They contained a clear liquid and one was labelled dimethyl polysiloxane. In other words, a form of the hazardous liquid silicone.
* Dimethyl polysiloxane and dimethyl silicone are two of the most common anti-foaming agents.
Comments: White cress-linked dimethyl polysiloxane elastomer powder coated with small particle size titanium dioxide provides soft focus effect and fluid/oil absorption capabilities; improves compaction; thickens volatile silicone; provides smoothness, powdery feel.
Another new material is Jeesile 6056 (dimethyl polysiloxane), a 60% active silicone emulsion of a dimethyl polysiloxane gum.
Among hybrid materials, dimethyl polysiloxanes and methyl phenyl polysiloxanes have seldom been studied to manufacture coatings with good chemical inertness and anti-corrosion features.