Poly(diethylsiloxane)
- Monomer Formula: C4H10OSi
- Monomer Molecular weight: 102.2071
- CAS Registry Number: 28323-47-9
- Information on this page:
- Other data available:
- Options:
Condensed phase thermochemistry data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°liquid | 215.4 | J/mol*K | N/A | Lebedev, Kulagina, et al., 1984 | |
| S°liquid | 215.4 | J/mol*K | N/A | Kulagina and Lebedev, 1982 | |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 213.697 | J/mol*K | N/A | Varma-Nair, Wesson, et al., 1989 | amorphous phase |
| S°solid,1 bar | 212.720 | J/mol*K | N/A | Varma-Nair, Wesson, et al., 1989 |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 165.3 | 298.15 | Lebedev, Kulagina, et al., 1984 | T = 13 to 300 K. |
| 165.5 | 298.15 | Kulagina and Lebedev, 1982 | T = 14 to 330 K. |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 164.994 | 298.15 | Varma-Nair, Wesson, et al., 1989 | amorphous phase; T = 0.10 to 550 K. Cp(liq) = 0.2365T + 93.75 J/mol*K (290 to 360 K). |
| 164.994 | 298.15 | Varma-Nair, Wesson, et al., 1989 | T = 0.10 to 308.50 K. |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev, Kulagina, et al., 1984
Lebedev, B.V.; Kulagina, T.G.; Svistunov, V.S.; Papkov, V.S.; Zhdanov, A.A.,
Calorimetric study of 1,1,3,3,5,5-hexaethylcyclotrisiloxane and polydiethysiloxane and the process of polymerization of 1,1,3,3,5,5-hexaethylcyclotrisiloxane in the range 13-330 K,
Vysokomol. Soedin., 1984, A26, 2476-2482. [all data]
Kulagina and Lebedev, 1982
Kulagina, T.G.; Lebedev, B.V.,
Thermodynamics of 2,2,4,4,6,6-hexaethylcyclotrisiloxane, its polymerization,
and the resulting poly(diethylsiloxane) in the 0-330 K range, 1982, Termodin. [all data]
Varma-Nair, Wesson, et al., 1989
Varma-Nair, M.; Wesson, J.P.; Wunderlich, B.,
The thermal properties of polysiloxanes poly(dimethyl siloxane) and poly(diethyl siloxane),
J. Therm. Anal., 1989, 35(6), 1913-1939. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Cp,solid Constant pressure heat capacity of solid S°liquid Entropy of liquid at standard conditions S°solid,1 bar Entropy of solid at standard conditions (1 bar) - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.