181846
Poly(dimethylsiloxane)
analytical standard, average Mw 95,000 (Typical), average Mn 50,000 (Typical)
Synonym(s):
Dimethylpolysiloxane
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About This Item
Linear Formula:
[Si(CH3)2O]n
CAS Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24
Recommended Products
grade
analytical standard
Quality Level
vapor pressure
5 mmHg ( 20 °C)
mol wt
average Mn 50,000 (Typical)
average Mw 95,000 (Typical)
technique(s)
gel permeation chromatography (GPC): suitable
format
neat
SMILES string
C[Si](C)=O
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General description
Poly(dimethylsiloxane) [PDMS] is a polymer. It is a stable silicone rubber. It has been used as ion selective membrane for ion-sensitive field-effect transistors, as spring material in accelerometers, elastomer on a tactile sensor and as flexible encapsulation material in decouple sensors.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.
Application
It was used in a study performed to understand its molecular weight and molecular weight distribution by off-line coupling of GPC with MALDI mass spectrometer.
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
214.0 °F - closed cup
Flash Point(C)
101.1 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Molecular weight distribution of poly (dimethylsiloxane) by combining matrix-assisted laser desorption/ionization time-of-flight mass spectrometry with gel-permeation chromatography fractionation.
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Rapid Communications in Mass Spectrometry, 9.12, 1158-1163 (1995)
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