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Supelco

Poly(dimethylsiloxane)

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

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Synonym(s):
Dimethylpolysiloxane
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.

WGK

WGK 1

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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