1-Butene, homopolymer
- Monomer Formula: C4H8
- Monomer Molecular weight: 56.1063
- CAS Registry Number: 9003-28-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Polybutene; Poly(1-butene)
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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
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 7.008 | 407.8 | Wilski and Grewer, 1964 | Rhombohedral form, 76.0% crystallinity. |
| 6.502 | 360. | Wilski and Grewer, 1964 | Rhombohedral atactic form, 13.0% crystallinity. |
| 4.075 | 394.6 | Wilski and Grewer, 1964 | Tetragonal form, 76.0% crystallinity. |
Temperature of phase transition
| Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|
| 249. | crystaline | glass | Dainton, Evans, et al., 1962 |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 2.933 | 394.6 | crystaline, II | crystaline, I | Wilski and Grewer, 1964 | Rhombohedral to tetragonal. |
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.
Wilski and Grewer, 1964
Wilski, H.; Grewer, T.,
The specific heat of poly-1-butene, J. Polymer Sci.,
Pt. C, 1964, (6), 33-41. [all data]
Dainton, Evans, et al., 1962
Dainton, F.S.; Evans, D.M.; Hoare, F.E.; Melia, T.P.,
Thermodynamic functions of linear high polymers. Part IV. Stereospecific poly-a-olefines,
Polymer, 1962, 3, 286-296. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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