Poly(oxacyclobutane)
- Monomer Formula: C3H6O
- Monomer Molecular weight: 58.0791
- CAS Registry Number: 25722-06-9
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Condensed phase thermochemistry 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
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 30.09 | 302.13 | Yoshida, Sakiyama, et al., 1970 | glass phase; T = 90 to 320 K. Cp at 302.13 K is unsmoothed experimental datum. Data also given graphically. Cp reported as 2.170 J/g*K at 302.13 K for annealed sample. Cp given for quenched sample from 95 to 205 K. |
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 |
|---|---|---|---|---|
| 195. | crystaline, I | glass | Yoshida, Sakiyama, et al., 1970 |
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 2.256 | 305. | crystaline, I | liquid | Yoshida, Sakiyama, et al., 1970 | Melting region extended from 200 to 300 K. |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 7.400 | 305. | crystaline, I | liquid | Yoshida, Sakiyama, et al., 1970 | Melting |
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.
Yoshida, Sakiyama, et al., 1970
Yoshida, S.; Sakiyama, M.; Seki, S.,
Thermodynamic studies of solid polyethers. I. Poly(oxacyclobutane),[-(CH2)3O-]n and its hydrate,
Polymer Journal, 1970, 1, 573-581. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid 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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