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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >The glass transition and crystallization of propylene carbonate investigated by mechanical spectroscopy
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The glass transition and crystallization of propylene carbonate investigated by mechanical spectroscopy

机译：机械光谱法研究碳酸亚丙酯的玻璃化转变和结晶

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摘要

A composite reed flexural vibration method is used to investigate the dynamic mechanical responses of propylene carbonate below room temperature. The mechanical spectrum of propylene carbonate is subtracted from a composite system consisting of the substrate and of propylene carbonate deposited on it. The mechanical spectrum relating to the glass transition and crystallization is identified. It suggests that an interfacial effect occurs in the crystalline state rather than the glass transition. This work supports the reliability of the composite reed flexural vibration method in the investigation on the glass transition of propylene carbonate. Finally, the determination of the glass transition temperature of propylene carbonate by mechanical spectroscopy was discussed.
机译：采用复合簧片弯曲振动方法研究了室温下碳酸亚丙酯的动态力学响应。从由基材和沉积在其上的碳酸亚丙酯组成的复合体系中减去碳酸亚丙酯的机械光谱。确定了与玻璃化转变和结晶有关的机械光谱。这表明界面效应以结晶态而不是玻璃化转变发生。这项工作支持了复合簧片弯曲振动方法在碳酸亚丙酯玻璃化转变研究中的可靠性。最后，讨论了用机械光谱法测定碳酸亚丙酯的玻璃化转变温度。

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