Polyoctadiene
- Monomer Formula: C8H12
- Monomer Molecular weight: 108.1809
- CAS Registry Number: 26353-15-1
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Phase change data
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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
Temperature of phase transition
| Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|
| 168.5 | crystaline, I | glass | Lebedev, Lityagov, et al., 1976 | Heat capacity increment following conversion to glass is 41.3 J/mol*K. |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.270 | 255. | crystaline, I | liquid | Lebedev, Lityagov, et al., 1976 | T = of anomaly, probably due to fusion of crystal of the cis-form, is 100-255 K. |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.06 | 255. | crystaline, I | liquid | Lebedev, Lityagov, et al., 1976 | T |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev, Lityagov, et al., 1976
Lebedev, B.V.; Lityagov, V.Ya.; Korshak, K.Yu.V.,
Thermodynamic properties of polyoctadiene in the range 0-328 K,
Zhur. Fiz. Khim., 1976, 50, 2439. [all data]
Notes
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- Symbols used in this document:
Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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