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481688

Sigma-Aldrich

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

average Mn ~2,500

Synonym(s):

PDMS

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About This Item

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:
12352300
PubChem Substance ID:
24871775
NACRES:
NA.23

specific activity

0.6-0.8 meq/g (Amine number)

Quality Level

100

mol wt

average Mn ~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

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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).

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

Certificates of Analysis (COA)

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Thermal decomposition behavior of cobalt (II)picolyl-terminated poly(dimethylsiloxane)
Kurokowa A, et al.
Journal of Thermal Analysis and Calorimetry, 97, 595-599 null
Thierry Fouquet et al.
Journal of the American Society for Mass Spectrometry, 22(4), 649-658 (2011-04-08)
Ammonium adducts of trimethylsilyl-terminated poly(dimethylsiloxane) (CH(3)-PDMS) produced by electrospray ionization were submitted to collision induced dissociation and revealed a particular MS/MS behavior: the same three main product ions at m/z 221, 295, and 369 were always generated in very similar

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