Abstract
The heat capacity of poly(octamethylene oxide) was measured in the temperature region between 13 and 36O°K by using an adibatic calorimeter. The following thermodynamic quantities were determined: Tg=247°K, Tm=347±1°K, and ΔHm=26.6 kJ/mol for sample-I, Tg=260°K and Tm=345±1°K for sample-II, and Tg=255°K for sample-III. Heat-capacity data were analysed based on Tarasov’s model. Characteristic temperatures θ1 and θ3 were evaluated to be 550 and 116°K respectively. Heat capacities of several kinds of polyethers and their vibrational spectra obtained by an analysis based on Tarasov’s model were compared with each other.
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Yoshida, S., Suga, H. & Seki, S. Thermodynamic Studies of Solid Polyethers. IV. Poly(octamethylene oxide), –[–(CH2)8O–]–n. Polym J 5, 33–40 (1973). https://doi.org/10.1295/polymj.5.33
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DOI: https://doi.org/10.1295/polymj.5.33
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