481688

Poly(dimethylsiloxane), bis(3-aminopropyl) terminated

average M_n ~2,500

• Synonym(s): PDMS
• Linear Formula: H₂N(CH₂)₃Si(CH₃)₂O[Si(CH₃)₂O]_nSi(CH₃)₂(CH₂)₃NH₂
• CAS Number: 106214-84-0
• MDL number: MFCD00241456
• UNSPSC Code: 12162002
• PubChem Substance ID: 24871775
• NACRES: NA.23

Properties

• specific activity: 0.6-0.8 meq/g (Amine number)
• mol wt: average M_n ~2,500
• refractive index: n20/D 1.410
• viscosity: 50 cSt(lit.)
• bp: >200 °C (lit.)
• density: 0.98 g/mL at 25 °C (lit.)
• SMILES string: C[Si](C)=O.C[Si](C)(O)CCCN

Description

General description

Tandem mass spectrometry (MS/MS) reveals that bis(3-aminopropyl)-PDMS mainly dissociates via intramolecular nucleophilic substitutions at the end groups.

Application

bis(3-aminopropyl) terminated poly(dimethylsiloxane) may be used in the synthesis of dipicolylamidopropylpoly(dimethylsiloxane) (DPPDMS).

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves