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Sigma-Aldrich

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

average Mn ~2,500

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Synonym(s):
PDMS
Linear Formula:
H2N(CH2)3Si(CH3)2O[Si(CH3)2O]nSi(CH3)2(CH2)3NH2
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

specific activity

0.6-0.8 meq/g (Amine number)

Quality Level

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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This Item
432997481696481246
refractive index

n20/D 1.410

refractive index

n20/D 1.404

refractive index

n20/D 1.406

refractive index

n20/D 1.409 (lit.)

density

0.98 g/mL at 25 °C (lit.)

density

0.97 g/mL at 25 °C

density

0.98 g/mL at 25 °C (lit.)

density

0.98 g/mL at 25 °C (lit.)

specific activity

0.6-0.8 meq/g (Amine number)

specific activity

-

specific activity

0.07-0.09 meq/g (Amine number)

specific activity

-

mol wt

average Mn ~2,500

mol wt

-

mol wt

average Mn ~27,000

mol wt

average Mn ~5,600

bp

>200 °C (lit.)

bp

-

bp

>200 °C (lit.)

bp

-

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

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves


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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
Thermal decomposition behavior of cobalt (II)picolyl-terminated poly(dimethylsiloxane)
Kurokowa A, et al.
Journal of Thermal Analysis and Calorimetry, 97, 595-599 null

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