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Poly(oxacyclobutane)


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
30.09302.13Yoshida, Sakiyama, et al., 1970glass 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, IglassYoshida, Sakiyama, et al., 1970 

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.256305.crystaline, IliquidYoshida, Sakiyama, et al., 1970Melting region extended from 200 to 300 K.

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
7.400305.crystaline, IliquidYoshida, Sakiyama, et al., 1970Melting

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

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