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APPLICATION OF THE TEMPERATURE WAVE TECHNIQUE FOR THE STUDY OF RELAXATION TRANSITIONS IN POLYMERS

机译:温度波技术在聚合物弛豫转变研究中的应用

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The paper describes the principles, theoretical calculation procedure, and apparatus used for the realization of the temperature wave technique. The efficiency of the technique for the studies of relaxation transitions in polymers when the thermophysical characteristics are in the complex form has been demonstrated. The temperature dependences of the moduli and arguments of thermophysical characteristics for different frequencies of temperature oscillations have been obtained for polyvinylacetate. The vibrational and configurational components of the heat capacity have been found. The effect of polymer plasticization and also of changes in the chemical composition of molecules on complex thermophysical characteristics has been shown using styrene-butylacrylate as an example. (C) 1997 Elsevier Science B.V. [References: 10]
机译:本文介绍了实现温度波技术的原理,理论计算程序和设备。已经证明了当热物理特性为复杂形式时,用于研究聚合物中弛豫转变的技术的效率。对于聚乙酸乙烯酯,已经获得了不同温度振荡频率下模量的温度依赖性和热物理特性参数。已经发现了热容量的振动和构型分量。以苯乙烯-丙烯酸丁酯为例,已经表明了聚合物增塑以及分子化学组成的变化对复杂的热物理特性的影响。 (C)1997 Elsevier Science B.V. [参考:10]

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