trans-1,4-Polybutadiene


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
437.crystaline, IliquidGrebowicz, Aycock, et al., 1986 

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.907356.crystaline, IIcrystaline, IGrebowicz, Aycock, et al., 1986Fully ordered/conformationally disordered transition.
0.8260317.crystaline, IIcrystaline, IDainton, Evans, et al., 1962 

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
5.23356.crystaline, IIcrystaline, IGrebowicz, Aycock, et al., 1986Fully
2.58317.crystaline, II, Solidcrystaline, I, solid transition is a linear to helical crystal structureDainton, Evans, et al., 1962 

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.

Grebowicz, Aycock, et al., 1986
Grebowicz, J.; Aycock, W.; Wunderlich, B., Heat capacities of 1,4-polybutadienes, Polymer, 1986, 27, 575-582. [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 V. cis- and trans-1,4-Polybutadiene, Polymer, 1962, 3, 297-309. [all data]


Notes

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