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Merck
CN

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:
63148-62-9
UNSPSC Code:
41116107
PubChem Substance ID:
24850959
NACRES:
NA.24
MDL number:
MFCD00084411

Key Documents

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Product Name

Poly(dimethylsiloxane), analytical standard, average Mw 95,000 (Typical), average Mn 50,000 (Typical)

InChI

1S/C2H6OSi/c1-4(2)3/h1-2H3

InChI key

SEUDSDUUJXTXSV-UHFFFAOYSA-N

SMILES string

C[Si](C)=O

grade

analytical standard

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

Quality Level

100

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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.

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.

Storage Class

10 - Combustible liquids

wgk

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ6769
MKCP5183
MKCM6138
MKCK1684
MKCH7833

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Robust and biodegradable elastomers based on corn starch and polydimethylsiloxane (PDMS).
Ceseracciu L
ACS Applied Materials & Interfaces, 7(6), 3742-3753 (2015)
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)

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