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181846

Supelco

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

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

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

214.0 °F - closed cup

flash_point_c

101.1 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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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.
Montaudo, Giorgio, et al.
Rapid Communications in Mass Spectrometry, 9.12, 1158-1163 (1995)
Robust and biodegradable elastomers based on corn starch and polydimethylsiloxane (PDMS).
Ceseracciu L
ACS Applied Materials & Interfaces, 7(6), 3742-3753 (2015)

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