Polytetrahydrofuran
- Monomer Formula: C4H8O
- Monomer Molecular weight: 72.1057
- CAS Registry Number: 24979-97-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Furan, tetrahydro-, homopolymer; Polytetramethylene Ether Glycol
- Information on this page:
- Other data available:
- Options:
Phase change 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
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 2.6291 | 316. | Lebedev and Lityagov, 1977 | |
| 2.6291 | 316. | Lebedev and Lityagov, 1977, 2 |
Entropy of fusion
| ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 8.32 | 316. | Lebedev and Lityagov, 1977 | |
| 8.32 | 316. | Lebedev and Lityagov, 1977, 2 |
Temperature of phase transition
| Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|
| 186. | crystaline, II | crystaline, I | Lebedev and Lityagov, 1977 | Glass point. |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev and Lityagov, 1977
Lebedev, B.V.; Lityagov, V.Ya.,
The difference between the entropies and enthalpies of vitreous and crystalline polytetrahydrofuran at 0 K,
Zhur. Fiz. Khim., 1977, 51, 1276. [all data]
Lebedev and Lityagov, 1977, 2
Lebedev, B.V.; Lityagov, V.Ya.,
Calorimetric study of tetrahydrofuran and its polymerization in the temperature range 0-400°K,
Vysokomol. Soedin., 1977, A19, 2283-2290. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Ttrs Temperature of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - 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.