81153

Poly(dimethylsiloxane)

analytical standard, 311

• Synonym(s): Dimethylpolysiloxane
• Linear Formula: [Si(CH₃)₂O]_n
• CAS Number: 63148-62-9
• MDL number: MFCD00084411
• UNSPSC Code: 41116107
• PubChem Substance ID: 24887662
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• vapor pressure: 5 mmHg ( 20 °C)
• shelf life: limited shelf life, expiry date on the label
• mol wt: M_n ~311; M_p ~311; M_w ~311
• technique(s): gel permeation chromatography (GPC): suitable
• Mw/Mn: ~1.0
• format: neat
• storage temp.: 2-8°C
• SMILES string: C[Si](C)=O
• InChI: 1S/C2H6OSi/c1-4(2)3/h1-2H3
• InChI key: SEUDSDUUJXTXSV-UHFFFAOYSA-N

Description

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.

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.

Poly(dimethylsiloxane) is found to be highly compatible with organic solvents and is used for fabricating microfluidic devices..

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 2
• Flash Point(F): 609.8 °F - closed cup
• Flash Point(C): 321 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves