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1,3-Butadiene, 2-methyl-, homopolymer


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 phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
4.761284.crystalineamorphousBekkedahl and Matheson, 1935Corrected for premelting, 255 to 284 K. Value per C5H8 unit. 'Fusion' actually transition to amorphous form.

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
16.8284.crystalineamorphousBekkedahl and Matheson, 1935Corrected

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.

Bekkedahl and Matheson, 1935
Bekkedahl, N.; Matheson, H., Heat capacity, entropy and free energy of rubber hydrocarbon, J. Res., 1935, NBS 15, 503-515. [all data]


Notes

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