235687
Hexamethylcyclotrisiloxane
98%
Synonym(s):
Cyclic (D3) permethylsiloxane
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About This Item
Empirical Formula (Hill Notation):
C6H18O3Si3
CAS Number:
Molecular Weight:
222.46
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352103
EC Number:
208-765-4
MDL number:
vapor density
1 (vs air)
Quality Level
assay
98%
form
solid
bp
134 °C (lit.)
mp
50-64 °C (lit.)
SMILES string
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1
InChI
1S/C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3
InChI key
HTDJPCNNEPUOOQ-UHFFFAOYSA-N
Application
Hexamethylcyclotrisiloxane (D3) can be used in the synthesis of:
- Polysiloxanes by anionic ring-opening polymerization.
- Thin films by pulsed- plasma-enhanced chemical vapor deposition (PECVD) for the application of insulating biomaterials.
- Dimethoxydimethylsilane by treating with dimethyl carbonate via deoligomerization using alkali metal hydroxide catalyst.
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Anionic polymerization of hexamethylcyclotrisiloxane with acetylacetone initiator to form telechelic polymer
Kumar A and Eichinger BE
Macromolecules, 23(26), 5358-5358 (1990)
A S Chawla
Biomaterials, 2(2), 83-88 (1981-04-01)
Silicone coated Celgard-2400 and Silastic membranes were prepared by plasma polymerization of hexamethylcyclotrisiloxane. The adhesion of canine platelets and leucocytes was tested by passing whole blood from the anaesthetized mongrel dog in an ex-vivo shunt system. The silicone control Celgard
Living anionic polymerization of hexamethylcyclotrisiloxane (D3) using functionalized initiation.
Elkins C L and Long T E
Macromolecules, 37(17), 6657-6659 (2004)