Excess heat capacity and fictive temperature of polystyrene in a wide range of cooling and heating rates

机译：在各种冷却和加热速率下，聚苯乙烯的热容量和虚构温度都过高

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The physical characteristics of polystyrene allow straightforward and reproducible measurements of heat capacity, C_p, glass transition temperature, T_g, and other properties. The possibility to reuse one sample for numerous cooling and heating cycles permits the investigation of the influence of the cooling and heating rates on C_p and T_g. In our research, we conduct the cooling phases with various (constant) cooling rates, but the respectively following heating phases with only one heating rate. The comparison of the heat capacities observed after different cooling rates results in an excess C_p, which we also calculate by means of a model.

机译：聚苯乙烯的物理特性允许对热容，C_p，玻璃化转变温度，T_g和其他特性进行简单而可重复的测量。将一个样品重新用于多个冷却和加热循环的可能性允许研究冷却和加热速率对C_p和T_g的影响。在我们的研究中，我们以不同的（恒定）冷却速率进行冷却阶段，但随后的加热阶段仅以一种加热速率进行。比较不同冷却速率后观察到的热容量会导致C_p过量，我们也可以通过模型进行计算。

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《Annual conference of the North American Thermal Analysis Society》|2012年|436|共1页
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Gunnar Schulz; Timur V. Tropin; Yeong Zen Chua; Jurn W. Schmelzer; Christoph Schick;
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1. Heat capacity measurements and modeling of polystyrene glass transition in a wide range of cooling rates [J] . Tropin Timur V., Schulz Gunnar, Schmelzer Juern W. P., Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2015,第Null期

机译：多种冷却速率下聚苯乙烯玻璃化转变的热容量测量和建模
2. On the dependence of the properties of glasses on cooling and heating rates II: Prigogine-Defay ratio, fictive temperature and fictive pressure [J] . Tropin T.V., Schmelzer J.W.P., Schick C. Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 2011,第4期

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3. Measurement of the limiting fictive temperature over five decades of cooling and heating rates [J] . Gao Siyang, Simon Sindee L. Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems . 2015,第Null期

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4. Excess heat capacity and fictive temperature of polystyrene in a wide range of cooling and heating rates [C] . Gunnar Schulz, Timur V. Tropin, Yeong Zen Chua, Annual conference of the North American Thermal Analysis Society . 2012

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8. A System Employing Laser Heating for the Measurement of High-Temperature Thermal Properties Over a Wide Pressure Range. [R] . whittaker, a. greenville kintner, p. l. 1976

机译：采用激光加热的系统，用于测量宽压力范围内的高温热性能。

Excess heat capacity and fictive temperature of polystyrene in a wide range of cooling and heating rates

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